Weather forecast for 10 daysHelena Valley Northwest, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

64°F
34°F

Partly Cloudy

Precip. probability: 2%
Precipitation: 0"
Wind: 6mphNNE 16°
Humidity: 59%
UV index: 3
Sunrise: 7:50 am MDT
Sunset: 6:36 pm MDT
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Today, changing cloud patterns will allow for periods of sunshine.
A stark contrast will be observed between the day's peak temperature of an enjoyable 64.4°F and the night's low of a cold 33.8°F.
Sunrise was at 7:50 am and sunset will be at 6:36 pm; the daylight will last for 10h and 46min.

10-day overview

Daily temperatures

Warmest day: tomorrow 68°C.
Coldest day: Tuesday 27.10. 39°C.

Chance of precipitation

Highest chance: Friday 71%.

Long-term weather forecast

Sunday
Oct 18, 2026

64°F
34°F

Partly Cloudy

Precip. probability: 2%
Precipitation: 0"
Wind: 6mphNNE 16°
Humidity: 59%
UV index: 3
Sunrise: 7:50 am MDT
Sunset: 6:36 pm MDT
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Monday
Oct 19, 2026

68°F
37°F

Sunny

Precip. probability: 4%
Precipitation: 0"
Wind: 7mphS 170°
Humidity: 54%
UV index: 3
Sunrise: 7:52 am MDT
Sunset: 6:34 pm MDT
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Tuesday
Oct 20, 2026

63°F
36°F

Partly Cloudy

Precip. probability: 2%
Precipitation: 0"
Wind: 7mphNNW 342°
Humidity: 56%
UV index: 3
Sunrise: 7:53 am MDT
Sunset: 6:32 pm MDT
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Wednesday
Oct 21, 2026

66°F
41°F

Mostly Sunny

Precip. probability: 5%
Precipitation: 0"
Wind: 7mphS 185°
Humidity: 61%
UV index: 3
Sunrise: 7:54 am MDT
Sunset: 6:30 pm MDT
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Thursday
Oct 22, 2026

64°F
43°F

Partly Cloudy

Precip. probability: 20%
Precipitation: 0.16"
Wind: 6mphSW 215°
Humidity: 63%
UV index: 3
Sunrise: 7:56 am MDT
Sunset: 6:29 pm MDT
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Friday
Oct 23, 2026

48°F
30°F

Rain

Precip. probability: 71%
Precipitation: 0.12"
Wind: 13mphWNW 300°
Humidity: 85%
UV index: 2
Sunrise: 7:57 am MDT
Sunset: 6:27 pm MDT
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Saturday
Oct 24, 2026

48°F
30°F

Partly Cloudy

Precip. probability: 9%
Precipitation: 0"
Wind: 7mphSW 228°
Humidity: 66%
UV index: 3
Sunrise: 7:59 am MDT
Sunset: 6:25 pm MDT
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Sunday
Oct 25, 2026

50°F
28°F

Mostly Cloudy

Precip. probability: 13%
Precipitation: 0"
Wind: 9mphNW 305°
Humidity: 69%
UV index: 2
Sunrise: 8:00 am MDT
Sunset: 6:23 pm MDT
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Monday
Oct 26, 2026

43°F
27°F

Partly Cloudy

Precip. probability: 21%
Precipitation: 0"
Wind: 8mphNNW 334°
Humidity: 68%
UV index: 2
Sunrise: 8:02 am MDT
Sunset: 6:22 pm MDT
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Tuesday
Oct 27, 2026

39°F
28°F

AM Snow Showers

Precip. probability: 30%
Precipitation: 0.08"
Wind: 9mphWNW 301°
Humidity: 84%
UV index: 2
Sunrise: 8:03 am MDT
Sunset: 6:20 pm MDT
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And a mix of gloomy, bright, damp and wintry weather is forecasted.
Rainfall is predicted for Thursday and Friday.
With a probability of 30%, snowfall is expected only on next Tuesday. The precipitation will be light at 0.16".
Temperature differences will be noticeable across the forecast period. Highs will range from 39.2°F to 68°F, while the lowest night temperatures will vary also significantly, as the overnight lows will vary from 26.6°F to 42.8°F.
The warmest day will be Monday, with a maximum of 68°F; the lowest daytime temperature of the period will be reached on next Tuesday, peaking at 39.2°F.

Updated: Oct 18, 2026 @ 14:07:46 UTC
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Weather Forecasting & Climate