- Kids stay & eat for free at Marriot Bonvoy
- Destinations include Europe, Middle East & Africa
- Valid for up to 2 adults & 2 kids aged up to 12
Missoula weather in August 2025
Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Missoula in August. Check more long-term weather averages for Missoula in August before you book your next holiday to Montana in 2025/2026.
- 28°C max day temperature
28 - 11 hours of sunshine per day
- 8 days with some rainfall
8 - 9°C min night temperature
9 - 14 hours of daylight per day
14 - Low heat & humidity
L - 31 mm of monthly rainfall
31 - 7 (High) UV index
7
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Recommended for Montana
The August weather guide for Montana (Missoula) 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)
More about the USA
How hot is it in Missoula in August?
Daytime temperatures usually reach 28°C in Missoula in August with low heat and humidity, falling to 9°C at night.
How sunny is it in Missoula in August?
There are normally 11 hours of bright sunshine each day in Missoula in August - that's 76% of daylight hours.
Does it rain in Missoula in August?
There are usually 8 days with some rain in Missoula in August and the average monthly rainfall is 31mm.
Missoula August sunrise & sunset times
Browse the sunrise and sunset times for Missoula in August 2025. Select a month to view Missoula sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:16 | 20:08 |
| Saturday, 16th August 2025 | 05:35 | 19:44 |
| Sunday, 31st August 2025 | 05:55 | 19:17 |
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