Special Weather Statement
Ends in 2 h 51 min
When
Until 5:30 AM
Where
East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Issued for this forecast zone · National Weather Service Great Falls MT
Full alert textHide details
With the rain and snowfall yesterday, patchy dense fog is developing over portions of North Central and Southwest MT.
Visibility is below a half mile in some areas.
Those traveling early this morning should be alert for quickly changing visibility conditions.
Reminder, reduce your driving speeds in areas of poor visibility.
Areas: East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
See it on weather.gov (opens in a new tab)

Observed 2:15 AM MDT at KWYS

Hebgen Lake Estates, MT weather

Clear and 27°−3°, freeze watch tonight, low 21°−6°.

Mostly agree

Now 27°−3°

Clear · Feels like 21°−6°

Feels like: 21°−6°; Wind chill from 5 mph8 km/h wind · air 27°−3°
Wind: 5 mph8 km/h; From the north-northeast. Up to 7 mph11 km/h through 2 PM
Dew point: 25°−4°; Dry · up to 33°1° by 2 PM
Humidity: 93%; Air 27°−3°, dew point 25°−4° · frost likely
UV index: 0Low; Moderate 12–5 PM · peak 4

Light snow now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze until 1 PM (low 21°−6°)
Above 30°−1° today by noon
High 45°7° today at 4 PM
Hard freeze tonight 9 PM–11 AM (low 23°−5°)
Below freezing tomorrow night from 10 PM (low 29°−2°)

TonightNear 25°−4° · freezing, low 23°−5° · Clear
This morningUp to 28°−2° by 11 AM · freezing, low 21°−6° · Clear
This afternoonUp to 45°7° by 4 PM · freezing, low 32°0° · Clear
TonightDown to 25°−4° by 5 AM · freezing, low 25°−4° · Clear
Tomorrow morningUp to 33°1° by 11 AM · freezing, low 23°−5° · Partly cloudy
Tomorrow afternoonUp to 51°11° by 4 PM · Clear
Tomorrow nightDown to 29°−2° by 1 AM · freezing, low 29°−2° · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 2a	Clear	26°−3° (likely 26°−3° to 32°0°)	18°−8°	0%	8 mph13 km/h from N, gusts 5 mph9 km/h	100%	26%	0
Sat 3a	Clear	25°−4° (likely 25°−4° to 32°0°)	17°−8°	0%	7 mph11 km/h from N, gusts 6 mph9 km/h	99%	18%	0
Sat 4a	Clear	24°−4° (likely 24°−4° to 31°−1°)	18°−8°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	97%	20%	0
Sat 5a	Clear	23°−5° (likely 23°−5° to 31°−1°)	18°−8°	0%	3 mph5 km/h from NE, gusts 4 mph7 km/h	100%	7%	0
Sat 6a	Clear	22°−6° (likely 22°−6° to 31°−1°)	22°−6°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	100%	6%	0
Sat 7a	Clear	21°−6° (likely 21°−6° to 31°−1°)	21°−6°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	100%	9%	0
Sat 8a	Sunny	21°−6° (likely 21°−6° to 31°−1°)	21°−6°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	100%	14%	0
Sat 9a	Sunny	22°−6° (likely 22°−6° to 32°0°)	22°−6°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	100%	15%	0
Sat 10a	Sunny	25°−4° (likely 25°−4° to 34°1°)	25°−4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	11%	1
Sat 11a	Sunny	28°−2° (likely 28°−2° to 37°3°)	28°−2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	99%	13%	2
Sat 12p	Sunny	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 3 mph4 km/h	88%	10%	4
Sat 1p	Sunny	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	10%	4
Sat 2p	Sunny	42°6° (likely 40°4° to 44°7°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	12%	4
Sat 3p	Sunny	43°6° (likely 41°5° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	66%	12%	4
Sat 4p	Sunny	45°7° (likely 42°6° to 46°8°)	45°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	62%	13%	3
Sat 5p	Sunny	43°6° (likely 41°5° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	61%	16%	2
Sat 6p	Clear	43°6° (likely 39°4° to 44°7°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	61%	7%	1
Sat 7p	Clear	39°4° (likely 36°2° to 40°4°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	77%	5%	0
Sat 8p	Clear	34°1° (likely 34°1° to 38°3°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	84%	7%	0
Sat 9p	Clear	32°0° (likely 32°0° to 36°2°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	8%	0
Sat 10p	Mostly clear	31°−1° (likely 31°−1° to 35°2°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	19%	0
Sat 11p	Clear	29°−2° (likely 29°−2° to 35°2°)	29°−2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	24%	0
Sun 12a	Clear	28°−2° (likely 28°−2° to 33°1°)	28°−2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	31%	0
Sun 1a	Clear	27°−3° (likely 27°−3° to 33°1°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	33%	0
Sun 2a	Clear	27°−3° (likely 27°−3° to 32°0°)	27°−3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	32%	0
Sun 3a	Clear	27°−3° (likely 27°−3° to 32°0°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	32%	0
Sun 4a	Clear	27°−3° (likely 27°−3° to 31°−1°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	33%	0
Sun 5a	Partly cloudy	25°−4° (likely 25°−4° to 31°−1°)	25°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	38%	0
Sun 6a	Mostly cloudy	25°−4° (likely 25°−4° to 31°−1°)	25°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	44%	0
Sun 7a	Mostly cloudy	24°−4° (likely 24°−4° to 31°−1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	45%	0
Sun 8a	Mostly cloudy	23°−5° (likely 23°−5° to 32°0°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	43%	0
Sun 9a	Partly sunny	27°−3° (likely 27°−3° to 33°1°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph6 km/h	100%	40%	0
Sun 10a	Partly sunny	31°−1° (likely 30°−1° to 38°3°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	23%	1
Sun 11a	Sunny	33°1° (likely 33°1° to 43°6°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	98%	7%	2
Sun 12p	Sunny	38°3° (likely 38°3° to 47°8°)	38°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	0%	3
Sun 1p	Sunny	43°6° (likely 43°6° to 49°9°)	43°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	71%	0%	4
Sun 2p	Sunny	47°8° (likely 46°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	58%	0%	4
Sun 3p	Sunny	49°9° (likely 48°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	52%	3%	4
Sun 4p	Sunny	51°11° (likely 48°9° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 5 mph7 km/h	50%	3%	3
Sun 5p	Sunny	49°9° (likely 46°8° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	54%	1%	2
Sun 6p	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	55%	4%	1
Sun 7p	Clear	42°6° (likely 42°6° to 44°7°)	42°6°	0%	0 mph0 km/h, gusts 5 mph9 km/h	72%	6%	0
Sun 8p	Mostly clear	37°3° (likely 37°3° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	82%	10%	0
Sun 9p	Mostly clear	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	88%	44%	0
Sun 10p	Mostly clear	31°−1° (likely 31°−1° to 37°3°)	31°−1°	0%	0 mph0 km/h, gusts 6 mph9 km/h	93%	44%	0
Sun 11p	Mostly clear	30°−1° (likely 30°−1° to 36°2°)	30°−1°	0%	0 mph0 km/h, gusts 3 mph6 km/h	97%	37%	0
Mon 12a	Mostly clear	30°−1° (likely 30°−1° to 35°2°)	30°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	99%	31%	0
Mon 1a	Mostly clear	29°−2° (likely 29°−2° to 35°2°)	29°−2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	13%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Fog. High 45°7°, low 21°−6°. Typical 46°8° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 21°−6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 45°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 25°−4°
  Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 45. Northeast wind around 2 mph.
Tonight: Patchy fog after 3am. Partly cloudy, with a low around 21. North wind 3 to 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
42°6°–46°8°
Low, likely
21°−6°–31°−1°
Typical high / low
46°8° / 26°−3°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Partly sunny. High 51°11°, low 25°−4°. Typical 45°7° / 25°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−2°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 51. Wind around 0 mph.
Night: Mostly clear, with a low around 25. Wind around 0 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–53°12°
Low, likely
25°−4°–31°−1°
Typical high / low
45°7° / 25°−4°
Wind
5 mph8 km/h
UV peak
4
Monday, Oct 26. Snow. High 48°9°, low 26°−3°. Typical 45°7° / 25°−4°. Snow 0.09 in2.3 mm, 5% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 31°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 47°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  40% chance · 0.2 in0.5 cm
4. Overnight
  midnight–6 AM
  Snow, 35°1°
  60% chance · 0.5 in1.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 48. South southwest wind 0 to 6 mph.
Night: A chance of rain before midnight, then rain and snow likely. Mostly cloudy, with a low around 26. South wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–49°9°
Low, likely
26°−3°–32°0°
Typical high / low
45°7° / 25°−4°
Wind
10 mph16 km/h, gusts 22 mph35 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 41°5°, low 22°−6°. Typical 44°7° / 25°−4°. Snow 0–3 in0–8 cm, 80% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 34°1°
  70% chance · 0.3 in0.8 cm
2. Afternoon
  noon–6 PM
  Snow, 37°3°
  60% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Snow, 33°1°
  50% chance · 0.1 in0.4 cm
4. Overnight
  midnight–6 AM
  Snow, 30°−1°
  40% chance · 0.1 in0.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Snow before 3pm, then rain and snow likely. Mostly cloudy, with a high near 41. South southwest wind 6 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than half an inch possible.
Night: A chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than half an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
34°1°–41°5°
Low, likely
22°−6°–33°1°
Typical high / low
44°7° / 25°−4°
Wind
11 mph18 km/h, gusts 29 mph46 km/h
UV peak
3
Wednesday, Oct 28. Snow. High 43°6°, low 23°−5°. Typical 44°7° / 24°−4°. Snow < 1 in< 2 cm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 33°1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 43.
Night: A slight chance of snow after midnight. Partly cloudy, with a low around 23.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
38°3°–44°7°
Low, likely
22°−6°–32°0°
Typical high / low
44°7° / 24°−4°
Wind
11 mph18 km/h, gusts 27 mph43 km/h
UV peak
4
Thursday, Oct 29. Snow. High 47°8°, low 25°−4°. Typical 43°6° / 24°−4°. Snow 0–2 in0–5 cm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 29°−1°
  30% chance · 0.3 in0.7 cm
2. Afternoon
  noon–6 PM
  Cloudy, 43°6°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  20% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 33°0°
  30% chance · 0.2 in0.4 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon, then a slight chance of rain and snow. Partly sunny, with a high near 47.
Night: A chance of rain and snow. Mostly cloudy, with a low around 25.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
42°6°–47°8°
Low, likely
23°−5°–33°1°
Typical high / low
43°6° / 24°−4°
Wind
9 mph15 km/h, gusts 20 mph32 km/h
UV peak
3
Friday, Oct 30. Snow. High 48°9°, low 32°0°. Typical 43°6° / 24°−4°. Snow 0–3 in0–8 cm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 34°1°
  30% chance · 0.4 in0.9 cm
2. Afternoon
  noon–6 PM
  Snow, 40°5°
  40% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Snow, 37°3°
  40% chance · 0.3 in0.8 cm
4. Overnight
  midnight–6 AM
  Snow, 35°2°
  40% chance · 0.3 in0.8 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 48. Little or no snow accumulation expected.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
38°3°–48°9°
Low, likely
27°−3°–35°2°
Typical high / low
43°6° / 24°−4°
Wind
7 mph11 km/h, gusts 17 mph28 km/h
UV peak
1
Saturday, Oct 31. Snow. High 36°2°, low 26°−3°. Typical 42°6° / 24°−4°. Snow 0–4 in0–10 cm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 33°1°
  30% chance · 0.4 in1 cm
2. Afternoon
  noon–6 PM
  Snow, 36°2°
  30% chance · 0.4 in1 cm
3. Evening
  6 PM–midnight
  Cloudy, 30°−1°
  30% chance · 0.1 in0.3 cm
4. Overnight
  midnight–6 AM
  Cloudy, 22°−5°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
33°1°–39°4°
Low, likely
24°−4°–29°−2°
Typical high / low
42°6° / 24°−4°
Wind
7 mph12 km/h, gusts 22 mph35 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 35°2°, low 21°−6°. Typical 42°6° / 23°−5°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 35°2°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 26°−3°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 21°−6°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
31°−1°–41°5°
Low, likely
17°−8°–24°−4°
Typical high / low
42°6° / 23°−5°
Wind
8 mph13 km/h, gusts 20 mph32 km/h
UV peak
4
Monday, Nov 2. Sunny. High 39°4°, low 22°−6°. Typical 41°5° / 23°−5°. Rain 0.03 in0.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 25°−4°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 38°4°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 29°−2°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
36°2°–44°7°
Low, likely
18°−8°–24°−4°
Typical high / low
41°5° / 23°−5°
Wind
6 mph10 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 45°, low 21°.
Tomorrow
Dry, high 51°, low 25°, warming up.
Monday
Dry, high 48°, low 26°, cooling off.
Rest of week
Highs 35–48°; chance of precipitation on Tuesday, Friday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Madison River near West Yellowstone

9.8 mi

Level: 1.7 ft
Flow: 357 cfs

Reading from Sat 12:30 AM · NWS gauge page

Madison River near Grayling

9.9 mi

Level: 1.5 ft
Flow: 820 cfs

Reading from Sat 12:45 AM · NWS gauge page

Madison River at Hebgen Dam near West Yellowstone

9.9 mi

Level: 6530 ft

Reading from Sat 12:45 AM · NWS gauge page

Eastern Idaho Reservoirs at Henrys Lake

14 mi

Below flood stage

Level: 2.9 ft

Reading from Sat 12:30 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Pipes: watch the cold

Tonight’s low: 21°−6°

Overnight low near 21°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 70% less heating than a typical week.

This week 63Typical 214

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 44
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 17 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 25°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Hebgen Dam · official normals 1991–2020 · records 1904–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 8°4° warmer than normal (daily mean temperature).

+6°+3°SunOct 18
+5°+3°MonOct 19
+8°+4°TueOct 20
+7°+4°WedOct 21
+10°+5°ThuOct 22
+12°+7°FriOct 23
—SatOct 24

Hebgen Lake Estates weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 33 min; Losing 2 min 53 s a day; shortest Dec 21, 1 h 45 min less
Golden hour: 5:44–6:43 PM; Morning 7:33–8:33 AM
Blue hour: 6:43–6:54 PM; Morning 7:22–7:33 AM; first light 7:22 AM

Stars tonight? Good

Mostly clear 3–7:22 AM; moon 96% lit, sets 6:07 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 6:07 AM · rises 5:25 PM
Full moon: Oct 25
New moon: Nov 9

Looking northwest from Hebgen Lake Estates. The highest point on the skyline is about 11,200 ft, 18 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.

1 active weather alert

Special Weather Statement