Click on a day for an hourly weather forecast
The temperatures in Cheyenne in August are comfortable with low of 15°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Cheyenne during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Cheyenne in August 2025.
If you’re planning to visit Cheyenne in the near future, we highly recommend that you review the 14 day weather forecast for Cheyenne before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -5° | 3 | 16 | 12 | 27 mm | Awful | Cheyenne in January |
| February | 2° / -6° | 4 | 10 | 15 | 42 mm | Awful | Cheyenne in February |
| March | 8° / -1° | 5 | 15 | 12 | 77 mm | Bad | Cheyenne in March |
| April | 12° / 1° | 5 | 15 | 10 | 101 mm | Bad | Cheyenne in April |
| May | 17° / 6° | 10 | 16 | 5 | 149 mm | Bad | Cheyenne in May |
| June | 25° / 12° | 6 | 24 | 0 | 77 mm | Perfect | Cheyenne in June |
| July | 28° / 16° | 4 | 27 | 0 | 83 mm | Perfect | Cheyenne in July |
| August | 28° / 15° | 3 | 28 | 0 | 52 mm | Perfect | Cheyenne in August |
| September | 24° / 12° | 2 | 28 | 0 | 46 mm | Perfect | Cheyenne in September |
| October | 14° / 4° | 3 | 23 | 5 | 49 mm | Ok | Cheyenne in October |
| November | 8° / -1° | 2 | 19 | 9 | 31 mm | Bad | Cheyenne in November |
| December | 2° / -6° | 5 | 15 | 11 | 33 mm | Awful | Cheyenne in December |