Thief River Falls weather in August 2025

Expect 26°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Thief River Falls in August. Check more long-term weather averages for Thief River Falls in August before you book your next holiday to Minnesota in 2025/2026.

  • 26°C maximum daytime temperature in August in Thief River Falls26
    26°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in August in Thief River Falls10
    10 days with some rainfall
  • 11°C minimum night-time temperature in August in Thief River Falls11
    11°C min night temperature
  • 14 hours of daylight per day in August in Thief River Falls14
    14 hours of daylight per day
  • Low heat & humidity in August in Thief River FallsL
    Low heat & humidity
  • 75 mm monthly rainfall in August in Thief River Falls75
    75 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Thief River Falls7
    7 (High) UV index

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Thief River Falls by month

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The August weather guide for Minnesota (Thief River Falls) 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 Thief River Falls in August?

Daytime temperatures usually reach 26°C in Thief River Falls in August with low heat and humidity, falling to 11°C at night.

How sunny is it in Thief River Falls in August?

There are normally 9 hours of bright sunshine each day in Thief River Falls in August - that's 65% of daylight hours.

Does it rain in Thief River Falls in August?

There are usually 10 days with some rain in Thief River Falls in August and the average monthly rainfall is 75mm.

Thief River Falls August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:01 20:00
Saturday, 16th August 2025 05:21 19:36
Sunday, 31st August 2025 05:42 19:07

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