Kalispell weather in August 2025

Expect daytime maximum temperatures of 26°C in Kalispell in August based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 26°C maximum daytime temperature in August in Kalispell26
    26°C max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in August in Kalispell8
    8 days with some rainfall
  • 8°C minimum night-time temperature in August in Kalispell8
    8°C min night temperature
  • 14 hours of daylight per day in August in Kalispell14
    14 hours of daylight per day
  • Low heat & humidity in August in KalispellL
    Low heat & humidity
  • 37 mm monthly rainfall in August in Kalispell37
    37 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Kalispell7
    7 (High) UV index

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The August weather guide for Montana (Kalispell) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Kalispell in August?

Daytime temperatures usually reach 26°C in Kalispell in August with low heat and humidity, falling to 8°C at night.

How sunny is it in Kalispell in August?

There are normally 10 hours of bright sunshine each day in Kalispell in August - that's 72% of daylight hours.

Does it rain in Kalispell in August?

There are usually 8 days with some rain in Kalispell in August and the average monthly rainfall is 37mm.

Kalispell August sunrise & sunset times

Browse the sunrise and sunset times for Kalispell in August 2025. Select a month to view Kalispell sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:13 20:13
Saturday, 16th August 2025 05:34 19:48
Sunday, 31st August 2025 05:54 19:20

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