Model estimate for 8:00 AM MDT (no recent station report)

Harrison, MT weather

Foggy and 24°−4°.

Forecasts differ

Now 24°−4°

Fog

Wind: Calm; Light through 8 PM
Dew point: 24°−4°; Dry · up to 33°1° by 12 PM
Humidity: 99%; Air 24°−4°, dew point 24°−4° · frost likely
UV index: 0Low; Moderate 1–3 PM · peak 3

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze until noon (low 24°−4°)
Fog until 11 AM
Above 30°−1° today by 11 AM
Hard freeze tonight 9 PM–noon (low 22°−6°)
Hard freeze tomorrow night from 8 PM (low 23°−5°)

This morningUp to 31°−1° by 11 AM · Partly cloudy · freezing, low 24°−4°
This afternoonUp to 39°4° by 5 PM · Clear
TonightDown to 24°−4° by 4 AM · freezing, low 24°−4° · Clear
Tomorrow morningUp to 30°−1° by 11 AM · freezing, low 22°−6° · Clear
Tomorrow afternoonUp to 39°4° by 5 PM · Clear
Tomorrow nightDown to 23°−5° by 5 AM · freezing, low 23°−5° · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 8a	Fog	24°−4° (likely 23°−5° to 29°−2°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	99%	38%	0
Sat 9a	Fog	24°−4° (likely 24°−4° to 30°−1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	99%	35%	0
Sat 10a	Fog	28°−2° (likely 26°−3° to 31°−1°)	28°−2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	25%	1
Sat 11a	Mostly sunny	31°−1° (likely 28°−2° to 33°1°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	22%	1
Sat 12p	Sunny	34°1° (likely 30°−1° to 36°2°)	34°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	99%	14%	2
Sat 1p	Sunny	36°2° (likely 33°1° to 38°3°)	36°2°	0%	0 mph0 km/h, gusts 5 mph7 km/h	100%	14%	3
Sat 2p	Sunny	38°3° (likely 36°2° to 40°4°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	94%	15%	3
Sat 3p	Sunny	38°3° (likely 37°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	97%	11%	2
Sat 4p	Sunny	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 5 mph7 km/h	95%	9%	1
Sat 5p	Sunny	39°4° (likely 37°3° to 42°6°)	39°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	8%	1
Sat 6p	Clear	37°3° (likely 34°1° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	92%	7%	1
Sat 7p	Clear	34°1° (likely 32°0° to 39°4°)	34°1°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	5%	0
Sat 8p	Mostly clear	33°1° (likely 31°−1° to 37°3°)	33°1°	0%	0 mph0 km/h, gusts 4 mph6 km/h	99%	16%	0
Sat 9p	Mostly clear	30°−1° (likely 30°−1° to 36°2°)	30°−1°	0%	0 mph0 km/h, gusts 4 mph6 km/h	99%	18%	0
Sat 10p	Clear	29°−2° (likely 29°−2° to 35°2°)	29°−2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	98%	6%	0
Sat 11p	Clear	28°−2° (likely 28°−2° to 35°2°)	28°−2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	1%	0
Sun 12a	Clear	27°−3° (likely 27°−3° to 35°2°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	0%	0
Sun 1a	Clear	26°−3° (likely 26°−3° to 35°2°)	26°−3°	0%	0 mph0 km/h, gusts 3 mph6 km/h	95%	1%	0
Sun 2a	Clear	25°−4° (likely 25°−4° to 34°1°)	25°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	4%	0
Sun 3a	Clear	25°−4° (likely 25°−4° to 34°1°)	25°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	0%	0
Sun 4a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	98%	0%	0
Sun 5a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	95%	7%	0
Sun 6a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	98%	7%	0
Sun 7a	Clear	23°−5° (likely 23°−5° to 34°1°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	4%	0
Sun 8a	Sunny	22°−6° (likely 22°−6° to 34°1°)	22°−6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	5%	0
Sun 9a	Partly sunny	24°−4° (likely 24°−4° to 33°1°)	24°−4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	13%	0
Sun 10a	Sunny	28°−2° (likely 28°−2° to 36°2°)	28°−2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	100%	16%	1
Sun 11a	Sunny	30°−1° (likely 30°−1° to 38°3°)	30°−1°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	18%	2
Sun 12p	Sunny	33°1° (likely 33°1° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	20%	3
Sun 1p	Sunny	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	15%	4
Sun 2p	Sunny	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	96%	8%	4
Sun 3p	Mostly sunny	37°3° (likely 37°3° to 45°7°)	37°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	95%	15%	3
Sun 4p	Partly sunny	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	94%	29%	2
Sun 5p	Partly sunny	39°4° (likely 38°3° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	91%	37%	2
Sun 6p	Partly cloudy	37°3° (likely 36°2° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	91%	33%	1
Sun 7p	Partly cloudy	33°1° (likely 32°0° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 8 mph13 km/h	100%	48%	0
Sun 8p	Partly cloudy	31°−1° (likely 30°−1° to 38°3°)	31°−1°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	48%	0
Sun 9p	Mostly clear	30°−1° (likely 29°−2° to 37°3°)	30°−1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	49%	0
Sun 10p	Mostly clear	29°−2° (likely 28°−2° to 36°2°)	29°−2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	57%	0
Sun 11p	Mostly clear	28°−2° (likely 28°−2° to 35°2°)	28°−2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	59%	0
Mon 12a	Partly cloudy	27°−3° (likely 27°−3° to 34°1°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	65%	0
Mon 1a	Partly cloudy	26°−3° (likely 26°−3° to 34°1°)	26°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	56%	0
Mon 2a	Partly cloudy	25°−4° (likely 25°−4° to 34°1°)	25°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	53%	0
Mon 3a	Partly cloudy	24°−4° (likely 24°−4° to 33°1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	64%	0
Mon 4a	Partly cloudy	24°−4° (likely 24°−4° to 33°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	64%	0
Mon 5a	Partly cloudy	23°−5° (likely 23°−5° to 33°1°)	23°−5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	57%	0
Mon 6a	Mostly cloudy	23°−5° (likely 23°−5° to 33°1°)	23°−5°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	52%	0
Mon 7a	Mostly cloudy	23°−5° (likely 23°−5° to 34°1°)	23°−5°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	50%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Cloudy. High 39°4°, low 22°−6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 24°−4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 39°4°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 33°1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 24°−4°
  Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 39. Wind around 0 mph.
Tonight: Mostly clear, with a low around 22. Wind around 0 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
38°3°–44°7°
Low, likely
22°−6°–29°−2°
Wind
6 mph9 km/h
UV peak
4
Tomorrow, Oct 25. Partly sunny. High 39°4°, low 22°−6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 22°−6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 39°4°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 31°−1°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 23°−5°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 39. Wind around 0 mph.
Night: Partly cloudy, with a low around 22. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
39°4°–45°7°
Low, likely
22°−6°–33°1°
Wind
6 mph10 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 46°8°, low 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°5°
  30% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 35°2°
  60% chance · 0.15 in3.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 46. Wind around 0 mph.
Night: A chance of rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of rain and snow. Mostly cloudy, with a low around 28. Southwest wind around 1 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–48°9°
Low, likely
25°−4°–31°−1°
Wind
5 mph8 km/h, gusts 10 mph16 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 45°7°, low 24°−4°. Snow < 1 in< 2 cm, 60% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 36°2°
  50% chance · 0.05 in1.2 mm
2. Afternoon
  noon–6 PM
  Drizzle, 47°8°
  40% chance
3. Evening
  6 PM–midnight
  Clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 30°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Snow likely before 9am, then rain and snow likely. Mostly cloudy, with a high near 45. South southwest wind around 2 mph. Little or no snow accumulation expected.
Night: A chance of rain before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 24. Southwest wind 2 to 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–48°9°
Low, likely
24°−4°–38°3°
Wind
13 mph21 km/h, gusts 24 mph39 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 44°7°, low 24°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 44.
Night: Partly cloudy, with a low around 24.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–50°10°
Low, likely
23°−5°–33°1°
Wind
8 mph13 km/h, gusts 27 mph44 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 43°6°, low 24°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 38°3°
  30% chance · 0.04 in0.9 mm
4. Overnight
  midnight–6 AM
  Snow, 34°1°
  30% chance · 0.2 in0.5 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 43.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 24.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
40°4°–45°7°
Low, likely
24°−4°–34°1°
Wind
6 mph10 km/h, gusts 14 mph23 km/h
UV peak
3
Friday, Oct 30. Snow. High 45°7°, low 26°−3°. Snow 0–2 in0–5 cm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 34°1°
  40% chance · 0.2 in0.6 cm
2. Afternoon
  noon–6 PM
  Drizzle, 43°6°
  40% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 37°3°
  40% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Snow showers, 33°0°
  30% chance · 0.1 in0.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Partly sunny, with a high near 45.
Night: A chance of rain and snow. Mostly cloudy, with a low around 26.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
35°2°–50°10°
Low, likely
26°−3°–38°3°
Wind
11 mph18 km/h, gusts 23 mph37 km/h
UV peak
3
Saturday, Oct 31. Snow. High 38°3°, low 28°−2°. Snow 0–3 in0–8 cm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow showers, 31°0°
  30% chance · 0.4 in1 cm
2. Afternoon
  noon–6 PM
  Drizzle, 38°3°
  20% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Clear, 31°0°
  20% chance · 0.3 in0.6 cm
4. Overnight
  midnight–6 AM
  Partly cloudy, 26°−3°
  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
35°2°–42°6°
Low, likely
26°−3°–31°−1°
Wind
11 mph17 km/h, gusts 16 mph26 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 40°4°, low 25°−4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 25°−4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 40°5°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  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
34°1°–48°9°
Low, likely
17°−8°–30°−1°
Wind
8 mph12 km/h, gusts 19 mph31 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 44°7°, low 32°0°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 38°3°
  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
34°1°–54°12°
Low, likely
30°−1°–33°1°
Wind
6 mph9 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 39°, low 22°.
Tomorrow
Dry, high 39°, low 22°.
Monday
Dry, high 46°, low 28°, warming up.
Rest of week
Highs 38–45°; chance of precipitation on Tuesday.

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

Willow Creek (Southwest MT) near Harrison

2.5 mi

Level: 1.8 ft

Reading from Sat 12:15 AM · NWS gauge page

Jefferson River near Three Forks

16 mi

Below flood stage

Level: 3.6 ft
Flow: 1,430 cfs

Reading from Sat 7 AM · NWS gauge page

Madison River below Ennis Lake near McAllister

17 mi

Level: 3.8 ft
Flow: 1,250 cfs

Reading from Sat 6 AM · NWS gauge page

Madison River above Powerplant near McAllister

17 mi

Level: 3.1 ft
Flow: 2,940 cfs

Reading from Sat 6:45 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 30 min; Losing 2 min 58 s a day; shortest Dec 21, 1 h 49 min less
Golden hour: 5:44–6:44 PM; Morning 7:37–8:37 AM
Blue hour: 6:44–6:56 PM; Morning 7:25–7:37 AM; first light 7:25 AM

Stars tonight? Fair

Clear 6:56 PM–7:26 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:11 AM · rises 5:26 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from Harrison. The highest point on the skyline is about 10,500 ft, 13 mi away.Skyline from USGS elevation data, heights drawn up to 4× taller. Sky, sun and moon as they are now.