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Casper weather in August 2025
Expect 29°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Casper in August. Check more long-term weather averages for Casper in August before you book your next holiday to Wyoming in 2025/2026.
- 29°C max day temperature
29 - 10 hours of sunshine per day
- 6 days with some rainfall
6 - 10°C min night temperature
10 - 14 hours of daylight per day
14 - Moderate heat & humidity
M - 19 mm of monthly rainfall
19 - 9 (Very High) UV index
9
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Recommended for Wyoming
The August weather guide for Wyoming (Casper) 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 Casper in August?
Daytime temperatures usually reach 29°C in Casper in August with moderate heat and humidity, falling to 10°C at night.
How sunny is it in Casper in August?
There are normally 10 hours of bright sunshine each day in Casper in August - that's 73% of daylight hours.
Does it rain in Casper in August?
There are usually 6 days with some rain in Casper in August and the average monthly rainfall is 19mm.
Casper August sunrise & sunset times
Browse the sunrise and sunset times for Casper in August 2025. Select a month to view Casper sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 04:57 | 19:26 |
| Saturday, 16th August 2025 | 05:13 | 19:05 |
| Sunday, 31st August 2025 | 05:29 | 18:41 |
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