Observed 4:50 PM MDT at KHLN

York, MT weather

Sunny and 41°5°, 8°4° colder than a typical Oct 24, freeze watch tonight, low 24°−4°.

Mostly agree

Now 41°5°

Sunny · Feels like 38°3°

Wind: 5 mph7 km/h; From the west. Light through 5 AM
Dew point: 30°−1°; Dry · down to 22°−6° by 10 PM
UV tomorrow: 4Moderate; Moderate 12–4 PM · peak 4
Air quality: 57Moderate; Main pollutant: PM2.5 (fine particles)

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 40°4° tonight after 7 PM
Hard freeze tonight 9 PM–11 AM (low 24°−4°)
Low 24°−4° tomorrow at 8 AM
Above 30°−1° tomorrow by 10 AM
Hard freeze tomorrow night 8 PM–10 AM (low 24°−4°)

TonightDown to 26°−3° by 5 AM · freezing, low 26°−3° · Clear
Tomorrow morningUp to 35°2° by 11 AM · freezing, low 24°−4° · Partly cloudy
Tomorrow afternoonUp to 43°6° by 3 PM · Partly cloudy
Tomorrow nightDown to 26°−3° by 2 AM · freezing, low 26°−3° · Mostly cloudy
Monday morningUp to 40°4° by 11 AM · freezing, low 24°−4° · Mostly cloudy
Monday afternoonUp to 50°10° by 3 PM · Mostly 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 5p	Sunny	45°7° (likely 40°4° to 45°7°)	44°7°	0%	3 mph5 km/h from SE, gusts 16 mph27 km/h	57%	3%	1
Sat 6p	Clear	40°4° (likely 37°3° to 40°4°)	38°3°	0%	3 mph5 km/h from ESE, gusts 14 mph22 km/h	62%	4%	1
Sat 7p	Clear	37°3° (likely 35°2° to 37°3°)	34°1°	0%	3 mph5 km/h from ESE, gusts 9 mph14 km/h	69%	6%	0
Sat 8p	Clear	33°1° (likely 33°1° to 36°2°)	30°−1°	0%	3 mph5 km/h from ESE, gusts 8 mph14 km/h	68%	6%	0
Sat 9p	Clear	32°0° (likely 32°0° to 36°2°)	29°−2°	0%	3 mph5 km/h from ESE, gusts 8 mph13 km/h	68%	6%	0
Sat 10p	Mostly clear	31°−1° (likely 31°−1° to 37°3°)	28°−2°	0%	3 mph5 km/h from ESE, gusts 8 mph13 km/h	68%	13%	0
Sat 11p	Clear	30°−1° (likely 30°−1° to 37°3°)	30°−1°	0%	2 mph3 km/h from ESE, gusts 7 mph11 km/h	71%	10%	0
Sun 12a	Clear	30°−1° (likely 30°−1° to 36°2°)	30°−1°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	72%	8%	0
Sun 1a	Clear	29°−2° (likely 29°−2° to 36°2°)	29°−2°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	73%	9%	0
Sun 2a	Clear	28°−2° (likely 28°−2° to 36°2°)	28°−2°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	75%	15%	0
Sun 3a	Clear	28°−2° (likely 28°−2° to 36°2°)	28°−2°	0%	2 mph3 km/h from ENE, gusts 4 mph7 km/h	76%	5%	0
Sun 4a	Clear	28°−2° (likely 28°−2° to 36°2°)	24°−4°	0%	3 mph5 km/h from NE, gusts 4 mph6 km/h	78%	2%	0
Sun 5a	Clear	26°−3° (likely 26°−3° to 35°2°)	22°−6°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	81%	1%	0
Sun 6a	Clear	26°−3° (likely 23°−5° to 35°2°)	20°−7°	0%	5 mph8 km/h from ENE, gusts 4 mph6 km/h	85%	5%	0
Sun 7a	Clear	25°−4° (likely 24°−4° to 33°1°)	21°−6°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	84%	24%	0
Sun 8a	Partly sunny	24°−4° (likely 24°−4° to 32°0°)	20°−7°	0%	3 mph5 km/h from SE, gusts 4 mph7 km/h	85%	46%	0
Sun 9a	Partly sunny	28°−2° (likely 26°−3° to 32°0°)	24°−4°	0%	3 mph5 km/h from S, gusts 4 mph7 km/h	84%	73%	0
Sun 10a	Mostly sunny	32°0° (likely 29°−2° to 34°1°)	32°0°	0%	2 mph3 km/h from SW, gusts 4 mph7 km/h	82%	75%	1
Sun 11a	Mostly sunny	35°2° (likely 31°−1° to 38°3°)	32°0°	0%	3 mph5 km/h from SW, gusts 5 mph8 km/h	82%	49%	2
Sun 12p	Mostly sunny	38°3° (likely 33°1° to 40°4°)	36°2°	0%	3 mph5 km/h from WSW, gusts 6 mph9 km/h	74%	30%	3
Sun 1p	Sunny	40°4° (likely 36°2° to 42°6°)	38°3°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	73%	57%	3
Sun 2p	Mostly sunny	41°5° (likely 38°3° to 43°6°)	39°4°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	67%	41%	4
Sun 3p	Mostly sunny	43°6° (likely 39°4° to 44°7°)	41°5°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	62%	70%	3
Sun 4p	Cloudy	43°6° (likely 39°4° to 43°6°)	41°5°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	62%	64%	2
Sun 5p	Cloudy	42°6° (likely 38°3° to 42°6°)	42°6°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	62%	60%	1
Sun 6p	Mostly cloudy	38°3° (likely 35°2° to 40°4°)	38°3°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	69%	51%	0
Sun 7p	Mostly cloudy	35°2° (likely 31°−1° to 36°2°)	35°2°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	76%	47%	0
Sun 8p	Mostly cloudy	30°−1° (likely 29°−2° to 34°1°)	30°−1°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	76%	57%	0
Sun 9p	Mostly cloudy	29°−2° (likely 28°−2° to 33°1°)	29°−2°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	78%	58%	0
Sun 10p	Mostly cloudy	28°−2° (likely 27°−3° to 33°1°)	28°−2°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	79%	58%	0
Sun 11p	Mostly cloudy	28°−2° (likely 27°−3° to 32°0°)	28°−2°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	82%	70%	0
Mon 12a	Mostly cloudy	27°−3° (likely 27°−3° to 32°0°)	27°−3°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	83%	72%	0
Mon 1a	Mostly cloudy	27°−3° (likely 27°−3° to 32°0°)	27°−3°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	83%	74%	0
Mon 2a	Mostly cloudy	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	83%	76%	0
Mon 3a	Partly cloudy	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	83%	77%	0
Mon 4a	Partly cloudy	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	83%	82%	0
Mon 5a	Cloudy	26°−3° (likely 26°−3° to 33°1°)	26°−3°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	83%	83%	0
Mon 6a	Cloudy	24°−4° (likely 24°−4° to 33°1°)	20°−7°	0%	3 mph5 km/h from ESE, gusts 5 mph7 km/h	84%	79%	0
Mon 7a	Cloudy	25°−4° (likely 25°−4° to 32°0°)	21°−6°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	81%	76%	0
Mon 8a	Cloudy	27°−3° (likely 27°−3° to 32°0°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	80%	78%	0
Mon 9a	Cloudy	30°−1° (likely 29°−2° to 34°1°)	25°−4°	0%	5 mph8 km/h from ESE, gusts 6 mph9 km/h	79%	77%	0
Mon 10a	Sunny	35°2° (likely 33°1° to 39°4°)	31°−1°	0%	5 mph8 km/h from ESE, gusts 9 mph15 km/h	75%	45%	1
Mon 11a	Sunny	40°4° (likely 38°3° to 44°7°)	37°3°	0%	5 mph8 km/h from ESE, gusts 12 mph19 km/h	71%	52%	2
Mon 12p	Partly sunny	45°7° (likely 41°5° to 48°9°)	43°6°	0%	5 mph8 km/h from SSE, gusts 12 mph20 km/h	66%	49%	3
Mon 1p	Partly sunny	48°9° (likely 43°6° to 50°10°)	46°8°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	61%	76%	3
Mon 2p	Partly sunny	49°9° (likely 45°7° to 52°11°)	47°8°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	57%	74%	4
Mon 3p	Cloudy	50°10° (likely 46°8° to 54°12°)	49°9°	0%	3 mph5 km/h from SSE, gusts 8 mph14 km/h	56%	66%	3
Mon 4p	Partly sunny	49°9° (likely 46°8° to 55°13°)	48°9°	0%	3 mph5 km/h from SSE, gusts 8 mph12 km/h	58%	62%	2

Days ahead

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

Today, Oct 24. Mostly sunny. High 45°7°, low 24°−4°. Typical 53°12° / 30°−1°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 33°1°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 26°−3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 45. Southeast wind around 3 mph.
Tonight: Mostly clear, with a low around 24. East wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
40°4°–45°7°
Low, likely
24°−4°–31°−1°
Typical high / low
53°12° / 30°−1°
Wind
13 mph21 km/h, gusts 22 mph35 km/h
UV peak
4
Tomorrow, Oct 25. Mostly sunny. High 43°6°, low 23°−5°. Typical 53°12° / 30°−1°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 24°−4°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 30°−1°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 26°−3°
  Dry
Official NWS forecast
Day: Sunny, with a high near 43. Southwest wind around 5 mph.
Night: Mostly cloudy, with a low around 23. East northeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
39°4°–44°7°
Low, likely
23°−5°–31°−1°
Typical high / low
53°12° / 30°−1°
Wind
6 mph9 km/h, gusts 11 mph18 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 50°10°, low 30°−1°. Typical 52°11° / 30°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  30% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 36°2°
  50% chance · 0.1 in0.3 cm
Official NWS forecast
Day: Mostly sunny, with a high near 50. Southeast wind around 5 mph.
Night: A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 30. East southeast wind around 3 mph. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
47°8°–54°12°
Low, likely
26°−3°–32°0°
Typical high / low
52°11° / 30°−1°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 48°9°, low 28°−2°. Typical 52°11° / 29°−2°. Snow 0–2 in0–5 cm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 37°3°
  50% chance · 0.4 in1 cm
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  40% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Cloudy, 40°4°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Mostly cloudy, with a high near 48. Southwest wind 3 to 7 mph, with gusts as high as 20 mph.
Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 28. Southwest wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–48°9°
Low, likely
28°−2°–37°3°
Typical high / low
52°11° / 29°−2°
Wind
17 mph27 km/h, gusts 32 mph51 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 49°9°, low 27°−3°. Typical 51°11° / 29°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 49.
Night: Partly cloudy, with a low around 27.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
47°8°–50°10°
Low, likely
27°−3°–35°2°
Typical high / low
51°11° / 29°−2°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
3
Thursday, Oct 29. Mostly cloudy. High 46°8°, low 26°−3°. Typical 51°11° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 33°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 40°4°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 33°0°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 46.
Night: A chance of rain and snow. Mostly cloudy, with a low around 26.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
44°7°–49°9°
Low, likely
26°−3°–35°2°
Typical high / low
51°11° / 28°−2°
Wind
7 mph12 km/h, gusts 19 mph31 km/h
UV peak
3
Friday, Oct 30. Snow. High 46°8°, low 26°−3°. Typical 50°10° / 28°−2°. Snow 0.08 in2 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 33°1°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  30% chance
3. Evening
  6 PM–midnight
  Snow, 36°2°
  20% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 30°−1°
  20% chance · 0.02 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon, then a slight chance of rain and snow. Partly sunny, with a high near 46.
Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 26.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
37°3°–46°8°
Low, likely
26°−3°–36°2°
Typical high / low
50°10° / 28°−2°
Wind
6 mph9 km/h, gusts 14 mph22 km/h
UV peak
2
Saturday, Oct 31. Drizzle. High 40°4°, low 28°−2°. Typical 50°10° / 28°−2°. Rain 0.03 in0.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 39°4°
  Dry
3. Evening
  6 PM–midnight
  Clear, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 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
37°3°–44°7°
Low, likely
18°−8°–37°3°
Typical high / low
50°10° / 28°−2°
Wind
18 mph28 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 43°6°, low 30°−1°. Typical 49°9° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  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
39°4°–47°8°
Low, likely
27°−3°–34°1°
Typical high / low
49°9° / 27°−3°
Wind
16 mph26 km/h, gusts 29 mph46 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 45°7°, low 31°−1°. Typical 49°9° / 27°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 45°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 36°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
38°3°–52°11°
Low, likely
29°−2°–34°1°
Typical high / low
49°9° / 27°−3°
Wind
15 mph24 km/h, gusts 37 mph59 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 45°, low 24°.
Tomorrow
Dry, high 43°, low 23°.
Monday
Dry, high 50°, low 30°, warming up.
Rest of week
Highs 40–49°; 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

Missouri River at Canyon Ferry Reservoir

4.9 mi

Below flood stage

Level: 3785 ft

Reading from Sat 3 PM · NWS gauge page

Missouri River below Hauser Dam near Helena

7.2 mi

Level: 3.5 ft

Reading from Sat 3 PM · NWS gauge page

Missouri River at Helena Valley Reservoir

8.3 mi

Below flood stage

Level: 3818 ft

Reading from Sat 3:15 PM · NWS gauge page

Prickly Pear Creek near Clancy

17 mi

Level: 0.9 ft
Flow: 39 cfs

Reading from Sat 3:30 PM · 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: 24°−4°

Overnight low near 24°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 64% less heating than a typical week.

This week 62Typical 172

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 43
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 4 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 30°F).

Open the windows?

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

Is this typical?

Helena Airport Asos · official normals 1991–2020 · records 1880–2026

Oct 24, today vs a typical year

Today’s expected high is 8°4° colder than typical.

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

+6°+3°SunOct 18
+5°+3°MonOct 19
+6°+3°TueOct 20
+5°+3°WedOct 21
+8°+4°ThuOct 22
−1°FriOct 23
—SatOct 24

York weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 26 min; Losing 3 min 7 s a day; shortest Dec 21, 1 h 53 min less
Golden hour: 5:41–6:43 PM; Morning 7:38–8:40 AM
Blue hour: 6:43–6:54 PM; Morning 7:26–7:38 AM; first light 7:26 AM

Stars tonight? Fair

Clear 6:54 PM–7:28 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:12 AM · rises 5:24 PM
Full moon: Oct 25
New moon: Nov 9

Looking northeast from York. The highest point on the skyline is about 7,100 ft, 9 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.