Wyoming month by month
The next 12 months outside in Wyoming: what the weather usually does in Cheyenne, Casper and Gillette, and what's already on the calendar. Races and programs further out are still being posted, so the later months fill in over time.
October 2026
2 events listed
- Cheyenne
- 59° / 33°
- Rain or snow 1 day in 5
- Casper
- 61° / 33°
- Rain or snow 1 day in 6
- Gillette
- 59° / 34°
- Rain or snow 1 day in 4
Listings for October are still coming in. Check back closer to the date.
November 2026
1 event listed
- Cheyenne
- 48° / 24°
- Rain or snow 1 day in 5
- Casper
- 47° / 25°
- Rain or snow 1 day in 7
- Gillette
- 46° / 24°
- Rain or snow 1 day in 5
Listings for November are still coming in. Check back closer to the date.
December 2026
1 event listed
- Cheyenne
- 39° / 18°
- Rain or snow 1 day in 5
- Casper
- 38° / 17°
- Rain or snow 1 day in 6
- Gillette
- 36° / 16°
- Rain or snow 1 day in 5
Listings for December are still coming in. Check back closer to the date.
January 2027
Nothing listed yet
- Cheyenne
- 41° / 18°
- Rain or snow 1 day in 6
- Casper
- 38° / 17°
- Rain or snow 1 day in 6
- Gillette
- 36° / 16°
- Rain or snow 1 day in 4
Listings for January are still coming in. Check back closer to the date.
February 2027
Nothing listed yet
- Cheyenne
- 41° / 18°
- Rain or snow 1 day in 4
- Casper
- 40° / 18°
- Rain or snow 1 day in 6
- Gillette
- 38° / 17°
- Rain or snow 1 day in 4
Listings for February are still coming in. Check back closer to the date.
March 2027
Nothing listed yet
- Cheyenne
- 49° / 25°
- Rain or snow 1 day in 4
- Casper
- 49° / 25°
- Rain or snow 1 day in 6
- Gillette
- 49° / 25°
- Rain or snow 1 day in 4
Listings for March are still coming in. Check back closer to the date.
April 2027
Nothing listed yet
- Cheyenne
- 55° / 30°
- Rain or snow 1 day in 3
- Casper
- 57° / 31°
- Rain or snow 1 day in 4
- Gillette
- 56° / 32°
- Rain or snow 1 day in 3
Listings for April are still coming in. Check back closer to the date.
May 2027
Nothing listed yet
- Cheyenne
- 64° / 39°
- Rain or snow 1 day in 2
- Casper
- 67° / 41°
- Rain or snow 1 day in 3
- Gillette
- 66° / 41°
- Rain or snow 1 day in 3
Listings for May are still coming in. Check back closer to the date.
June 2027
Nothing listed yet
- Cheyenne
- 76° / 49°
- Rain or snow 1 day in 3
- Casper
- 79° / 50°
- Rain or snow 1 day in 4
- Gillette
- 77° / 50°
- Rain or snow 1 day in 3
Listings for June are still coming in. Check back closer to the date.
July 2027
Nothing listed yet
- Cheyenne
- 83° / 56°
- Rain or snow 1 day in 3
- Casper
- 88° / 56°
- Rain or snow 1 day in 5
- Gillette
- 86° / 57°
- Rain or snow 1 day in 4
Listings for July are still coming in. Check back closer to the date.
August 2027
Nothing listed yet
- Cheyenne
- 81° / 53°
- Rain or snow 1 day in 3
- Casper
- 86° / 55°
- Rain or snow 1 day in 5
- Gillette
- 85° / 56°
- Rain or snow 1 day in 5
Listings for August are still coming in. Check back closer to the date.
September 2027
Nothing listed yet
- Cheyenne
- 73° / 45°
- Rain or snow 1 day in 4
- Casper
- 76° / 44°
- Rain or snow 1 day in 5
- Gillette
- 75° / 46°
- Rain or snow 1 day in 5
Listings for September are still coming in. Check back closer to the date.
Typical weather is the NOAA 1991–2020 average at the nearest weather station to each city.
