Don Day's Wyoming Weather Forecast; Sunday, December 14, 2025

Mostly sunny to sunny in Wyoming on Sunday. Partly cloudy to mostly clear overnight. Highs from the mid 40s to the low 60s. Lows from the low teens to the mid 30s.

CK
Coy Knobel

December 14, 20254 min read

Fremont County
"Sunset on Popo Agie River, Lower Sinks Canyon."
"Sunset on Popo Agie River, Lower Sinks Canyon." (Reader photo: Pamela Ross)

 Mostly sunny to sunny in Wyoming on Sunday. Partly cloudy to mostly clear overnight. Highs from the mid 40s to the low 60s. Lows from the low teens to the mid 30s.

Central:  

Casper:  Sunny and windy today with a high near 58 and wind gusts as high as 38 mph. Mostly clear and breezy overnight with a low near 37 and wind gusts as high as 33 mph. 

Riverton:  Gradually becoming sunny today with a high near 50 and partly cloudy overnight with a low near 21.

Jeffrey City:  Breezy, gradually becoming sunny today with a high near 51 and wind gusts as high as 33 mph. Mostly clear and breezy overnight with a low near 26 and wind gusts as high as 26 mph.

Southwest:  

Evanston Mostly sunny today with a high near 50 and partly cloudy overnight with a low near 24.

Green River:  Mostly sunny today with a high near 50 and partly cloudy overnight with a low near 22.

Lyman:  Mostly sunny today with a high near 50 and partly cloudy overnight with a low near 25.

Western Wyoming:  

Pinedale:  Gradually becoming sunny today with a high near 45 and mostly clear overnight with a low near 17.

Alpine:  Sunny today with a high near 48 and mostly clear overnight with a low near 19.

Big Piney:  Mostly sunny today with a high near 45 and mostly clear overnight with a low near 12. 

Northwest: 

Dubois Sunny and breezy today with a high near 52 and wind gusts as high as 25 mph. Mostly clear and breezy overnight with a low near 28 and wind gusts as high as 23 mph.

Jackson:  Sunny today with a high near 49 and mostly clear overnight with a low near 19.

Old Faithful in Yellowstone National Park:  Sunny today with a high near 44 and mostly clear overnight with a low near 17.

Bighorn Basin:  

Thermopolis Mostly sunny today with a high near 53 and mostly clear overnight with a low near 24.

Cody:  Partly sunny today with a high near 57 and partly cloudy overnight with a low near 36 and wind gusts as high as 20 mph.

Powell: Mostly sunny today with a high near 46 and partly cloudy overnight with a low near 25.

North Central:  

Buffalo:  Mostly sunny today with a high near 59 and wind gusts as high as 20 mph. Mostly clear overnight with a low near 35.

Sheridan:  Sunny today with a high near 46 and mostly clear overnight with a low near 25.

Dayton:  Sunny today with a high near 50 and mostly clear overnight with a low near 30.

Northeast:  

Gillette:  Sunny today with a high near 63 and wind gusts as high as 23 mph. Mostly clear overnight with a low near 29 and wind gusts as high as 18 mph.

Newcastle:  Sunny today with a high near 57 and mostly clear overnight with a low near 29.

Upton:  Sunny today with a high near 49 and mostly clear overnight with a low near 23.

Eastern Plains:  

Torrington:  Mostly sunny today with a high near 55 and mostly clear overnight with a low near 25. 

Lusk:  Sunny today with a high near 56 and mostly clear overnight with a low near 32.

Midwest:  Sunny and breezy today with a high near 57 and wind gusts as high as 30 mph. Mostly clear and breezy overnight with a low near 31 and wind gusts as high as 22 mph.

Southeast:  

Cheyenne:  Mostly sunny today with a high near 58 and mostly clear overnight with a low near 36.

Laramie:  Gradually becoming sunny today with a high near 55 and mostly clear overnight with a low near 30. 

Medicine Bow:  Breezy, gradually becoming sunny today with a high near 55 and wind gusts as high as 30 mph. Mostly clear overnight with a low near 30.

South Central:  

Rawlins:  Breezy, gradually becoming sunny today with a high near 50 and wind gusts as high as 30 mph. Partly cloudy overnight with a low near 31.

Encampment:  Mostly sunny today with a high near 51 and partly cloudy overnight with a low near 28.

Hanna: Breezy, gradually becoming sunny today with a high near 52 and wind gusts as high as 30 mph. Mostly clear overnight with a low near 29.

Authors

CK

Coy Knobel

Night Editor