Weather forecast for 10 daysHelena Valley West Central, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

64°F
34°F

Sunny

Precip. probability: 1%
Precipitation: 0"
Wind: 7mphENE 74°
Humidity: 38%
UV index: 3
Sunrise: 7:50 am MDT
Sunset: 6:36 pm MDT
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Today, on Sunday, October 18, the forecast calls for abundant sunshine.
A substantial temperature fluctuation from a comfortable 64.4°F at its peak to a cold 33.8°F at its lowest point is forecasted.
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 70°C.
Coldest day: Tuesday 27.10. 39°C.

Chance of precipitation

Highest chance: Friday 64%.

Long-term weather forecast

Sunday
Oct 18, 2026

64°F
34°F

Sunny

Precip. probability: 1%
Precipitation: 0"
Wind: 7mphENE 74°
Humidity: 38%
UV index: 3
Sunrise: 7:50 am MDT
Sunset: 6:36 pm MDT
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Monday
Oct 19, 2026

70°F
36°F

Mostly Sunny

Precip. probability: 4%
Precipitation: 0"
Wind: 7mphSE 133°
Humidity: 53%
UV index: 3
Sunrise: 7:51 am MDT
Sunset: 6:34 pm MDT
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Tuesday
Oct 20, 2026

64°F
36°F

Partly Cloudy

Precip. probability: 3%
Precipitation: 0"
Wind: 7mphNNW 331°
Humidity: 55%
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 191°
Humidity: 62%
UV index: 3
Sunrise: 7:54 am MDT
Sunset: 6:30 pm MDT
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Thursday
Oct 22, 2026

66°F
45°F

Partly Cloudy

Precip. probability: 18%
Precipitation: 0.16"
Wind: 6mphSW 227°
Humidity: 64%
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: 64%
Precipitation: 0.16"
Wind: 14mphWNW 293°
Humidity: 84%
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: 5%
Precipitation: 0"
Wind: 7mphSSW 198°
Humidity: 68%
UV index: 3
Sunrise: 7:59 am MDT
Sunset: 6:25 pm MDT
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Sunday
Oct 25, 2026

52°F
28°F

Mostly Cloudy

Precip. probability: 24%
Precipitation: 0.08"
Wind: 9mphNW 313°
Humidity: 69%
UV index: 2
Sunrise: 8:00 am MDT
Sunset: 6:23 pm MDT
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Monday
Oct 26, 2026

45°F
27°F

Partly Cloudy

Precip. probability: 20%
Precipitation: 0"
Wind: 8mphNNW 334°
Humidity: 69%
UV index: 2
Sunrise: 8:01 am MDT
Sunset: 6:22 pm MDT
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Tuesday
Oct 27, 2026

39°F
28°F

Mostly Cloudy

Precip. probability: 24%
Precipitation: 0"
Wind: 8mphNW 312°
Humidity: 81%
UV index: 2
Sunrise: 8:03 am MDT
Sunset: 6:20 pm MDT
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Looking ahead, conditions suggest a period of gloomy, bright and wet weather is forecasted.
Rainfall is anticipated on Thursday, Friday and next Sunday. The days with the most rainfall will be Thursday and Friday, with light precipitation of 0.16".
Temperature fluctuation will be noticeable across the forecast period. The temperature is expected to swing from 39.2°F up to 69.8°F, while there will be also a marked difference in overnight low temperatures, as temperatures overnight will fluctuate from 26.6°F up to 44.6°F.
Monday will be the warmest day, with a maximum temperature of 69.8°F; the coldest day will be next Tuesday, with a maximum of 39.2°F.

Updated: Oct 18, 2026 @ 19:13:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate