Helena weather in August 2024

Expect 82°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Helena in August. Check more long-term weather averages for Helena in August before you book your next holiday to Montana in 2024/2025.

  • 82°F maximum daytime temperature in August in Helena82
    82°F max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in August in Helena8
    8 days with some rainfall
  • 48°F minimum night-time temperature in August in Helena48
    48°F min night temperature
  • 14 hours of daylight per day in August in Helena14
    14 hours of daylight per day
  • Low heat & humidity in August in HelenaL
    Low heat & humidity
  • 1.3 inches monthly rainfall in August in Helena1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Helena8
    8 (Very High) UV index

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The August weather guide for Montana (Helena) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Helena in August?

Daytime temperatures usually reach 82°F in Helena in August with low heat and humidity, falling to 48°F at night.

How sunny is it in Helena in August?

There are normally 10 hours of bright sunshine each day in Helena in August - that's 73% of daylight hours.

Does it rain in Helena in August?

There are usually 8 days with some rain in Helena in August and the average monthly rainfall is 1.3 inches.

Helena August sunrise & sunset times

Browse the sunrise and sunset times for Helena in August 2024. Select a month to view Helena sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st August 2024 06:10 20:58
Friday, 16th August 2024 06:28 20:35
Saturday, 31st August 2024 06:48 20:08

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