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Weather in Casper, Wyoming for August 2026

Your guide to Casper weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Red Flag Warning - See hour by hour.

    • Temperatures

  • Until now, August 2026 in Casper has been nearly identical to the historical average, with a temperature of 32 °F (showing only a slight deviation of 0.1 °F).

  • The forecast for the upcoming days in Casper predicts a temperature of 33.2 °F, which is slightly above the historical average.

  • In general, the average temperature in Casper at the beginning of August is 31.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.9 °F by the end of August.

    • Rain 🌧️

  • With an average of 2 rainy days, Casper experiences minimal rainfall in August.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/12°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
46 %
Avg humidity

Casper Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Thundery outbreaks possible
32°
2
Cloudy
35°
3
Sunny
27°
4
Sunny
30°
5
Sunny
31°
6
Sunny
33°
7
Cloudy
35°
8
Partly cloudy
27°
9
Weather Alert Sunny
36°
10
Sunny
35°
11
Sunny
35°
12
Sunny
33°
13
Partly cloudy
30°
14
Sunny
34°
15
Partly cloudy
28°
16
Sunny
33°
17
Sunny
34°
18
Sunny
34°
19
Sunny
31°
20
Sunny
32°
21
Sunny
36°
22
Thundery outbreaks possible
28°
23
Sunny
28°
24
Overcast
20°
25
Fog
25°
26
Overcast
28°
27
Heavy rain
19°
28
Cloudy
23°
29
Partly cloudy
24°
30
Thundery outbreaks possible
22°
31
Sunny
26°

Temperatures trend during August in Casper

See the weather trend as well as the moving average line

August weather in Casper day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Thundery outbreaks possible
Thundery outbreaks possible
 32° /14° 0 mm 9
Aug. 2 Cloudy
Cloudy
 35° /15° 0 mm 10
Aug. 3 Sunny
Sunny
 27° /12° 0 mm 10
Aug. 4 Sunny
Sunny
 30° /9° 0 mm 10
Aug. 5 Sunny
Sunny
 31° /11° 0 mm 10
Aug. 6 Sunny
Sunny
 33° /12° 0 mm 10
Aug. 7 Cloudy
Cloudy
 35° /13° 0 mm 9
Aug. 8 Partly cloudy
Partly cloudy
 27° /14° 0 mm 7
Aug. 9 Sunny
Sunny
 36° /16° 0 mm 6.6
Aug. 10 Sunny
Sunny
 35° /15° 0.3 mm 7.1
Aug. 11 Sunny
Sunny
 35° /18° 0 mm 8.2
Aug. 12 Sunny
Sunny
 33° /16° 0 mm 5.4
Aug. 13 Partly cloudy
Partly cloudy
 30° /13° 0.6 mm 7
Aug. 14 Sunny
Sunny
 34° /14° 0.6 mm 8
Aug. 15 Partly cloudy
Partly cloudy
 28° /17° 2.2 mm 7
Aug. 16 Sunny
Sunny
 33° /16° 0 mm 8
Aug. 17 Sunny
Sunny
 34° /18° 0 mm 8
Aug. 18 Sunny
Sunny
 34° /17° 0 mm 8
Aug. 19 Sunny
Sunny
 31° /17° 0.1 mm 8
Aug. 20 Sunny
Sunny
 32° /15° 1.4 mm 8
Aug. 21 Sunny
Sunny
 36° /17° 0 mm 9
Aug. 22 Thundery outbreaks possible
Thundery outbreaks possible
 28° /14° 1.7 mm 6
Aug. 23 Sunny
Sunny
 28° /13° 0 mm 7
Aug. 24 Overcast
Overcast
 20° /13° 0 mm 5
Aug. 25 Fog
Fog
 25° /10° 0 mm 6
Aug. 26 Overcast
Overcast
 28° /11° 0 mm 6
Aug. 27 Heavy rain
Heavy rain
 19° /13° 11.9 mm 4
Aug. 28 Cloudy
Cloudy
 23° /12° 0 mm 5
Aug. 29 Partly cloudy
Partly cloudy
 24° /12° 0 mm 6
Aug. 30 Thundery outbreaks possible
Thundery outbreaks possible
 22° /11° 0 mm 5
Aug. 31 Sunny
Sunny
 26° /9° 0 mm 7
Next
Important Notice
Our weather forecast for Casper in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Casper forecast closer to your planned date for the most up-to-date weather information.
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Casper in August - FAQ

What are the expected maximum and minimum temperatures in Casper during August?
Enjoy moderate daytime temperatures of up to 29° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Casper during August?
Expect minimal rainfall in Casper during August, with a total of 13.6 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Casper during August?
The average wind speed in Casper during August is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Casper

Explore the daily rainfall trends and prepare for Caspers August weather 💧
Typically, Casper has 2 rainy days in August with a total of 13.6 mm of rainfall.

UV exposure in Casper during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Casper?

Get accurate weather forecasts for Casper, located at latitude 42.867 and longitude -106.313. Stay updated with localized weather information tailored for Casper.

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