Don Day's Wyoming Weather Forecast: Wednesday, September 16, 2026

Partly to mostly sunny in much of Wyoming on Wednesday. Chance of rain in some areas. Mostly cloudy, chance of rain overnight. Highs from near 70 to mid-80s. Lows in the 40s and 50s.

CK
Coy Knobel

September 16, 20265 min read

Sheridan County
Sunset on the Beartooths
Sunset on the Beartooths (Reader photo: Tom Reed)

Partly to mostly sunny in much of Wyoming on Wednesday. Chance of rain in some areas. Mostly cloudy, chance of rain overnight. Highs from near 70 to mid-80s. Lows in the 40s and 50s.

 

Central:  

CasperMostly sunny and breezy today with a high near 82 and wind gusts as high as 21 mph. Cloudy overnight with a chance of rain and a low near 51.

Riverton:  Mostly sunny today with a high near 81 and mostly cloudy and breezy overnight with a chance of rain, a low near 51 and wind gusts as high as 23 mph.

Shoshoni:   Mostly sunny today with a high near 81 and increasing clouds overnight with a chance of rain and a low near 54.

 

Southwest:  

Evanston:   Chance of rain mainly after noon, otherwise partly sunny today with a high near 74 and mostly cloudy overnight with a slight chance of rain and a low near 47.

Green River:   Chance of rain, otherwise partly sunny today with a high near 77 and cloudy overnight with a slight chance of rain before 7 p.m. and a low near 54.

Kemmerer:   Chance of rain mainly after 4 p.m., otherwise mostly sunny today with a high near 72 and mostly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 47.

 

Western Wyoming:  

Pinedale:   Chance of rain mainly after 3 p.m., otherwise mostly sunny today with a high near 72 and mostly cloudy overnight with a chance of rain mainly after 3 a.m. and a low near 46.

Alpine:  Slight chance of rain, otherwise mostly sunny today with a high near 79 and increasing clouds overnight with a chance of rain mainly after 3 a.m. and a low near 46.

Big Piney:   Chance of rain mainly after noon, otherwise mostly sunny today with a high near 73 and mostly cloudy overnight with a chance of rain and a low near 45.

 

Northwest: 

Dubois:   Slight chance of rain after 5 p.m., otherwise mostly sunny today with a high near 69 and mostly cloudy overnight with a low near 43.

Jackson:   Slight chance of rain after 2 p.m., otherwise mostly sunny today with a high near 77 and mostly cloudy overnight with a chance of rain mainly after midnight and a low near 43.

Old Faithful in Yellowstone National Park:   Sunny today with a high near 70 and mostly cloudy overnight with a chance of rain and a low near 41.

 

Bighorn Basin:  

Thermopolis:   Sunny today with a high near 76 and increasing clouds overnight with a low near 50.

Cody:   Sunny today with a high near 69 and increasing clouds overnight with a low near 48.

Worland:  Sunny today with a high near 77 and mostly cloudy overnight with a low near 46.

 

North Central:  

Buffalo:   Sunny and breezy today with a high near 70 and wind gusts as high as 23 mph. Increasing clouds overnight with a slight chance of rain after 5 a.m., a low near 55 and wind gusts as high as 20 mph.

Sheridan:   Sunny today with a high near 73 and increasing clouds overnight with patchy fog after 3 a.m. and a low near 43.

Clearmont:   Sunny today with a high near 75 and mostly cloudy overnight with patchy fog after 3 a.m., a slight chance of rain after 5 a.m. and a low near 46.

 

Northeast:  

Gillette:  Mostly sunny and breezy today with a high near 77 and wind gusts as high as 32 mph. Increasing clouds overnight with a slight chance of rain after midnight, a low near 50 and wind gusts as high as 26 mph.

Newcastle:   Mostly sunny today with a high near 81 and wind gusts as high as 22 mph. Mostly cloudy overnight with a chance of rain after midnight, a low near 56 and wind gusts as high as 20 mph.

Upton:  Breezy, gradually becoming sunny today with a high near 82 and wind gusts as high as 29 mph. Increasing clouds overnight with a chance of rain after midnight, a low near 51 and wind gusts as high as 23 mph.

 

Eastern Plains:  

Torrington:  Mostly sunny today with a high near 87 and mostly cloudy overnight with a chance of rain and a low near 58.

Lusk:   Mostly sunny today with a high near 81 and mostly cloudy overnight with a chance of rain after midnight and a low near 52.

Midwest:  Mostly sunny and breezy today with a high near 79 and wind gusts as high as 25 mph. Increasing clouds and breezy overnight with a slight chance of rain after 5 a.m., a low near 50 and wind gusts as high as 25 mph.

 

Southeast:  

Cheyenne:   Slight chance of rain after 3 p.m., increasing clouds today with a high near 79 and mostly cloudy overnight with a chance of rain and a low near 54.

Laramie:  Chance of rain, otherwise partly sunny today with a high near 76 and mostly cloudy overnight with a chance of rain and a low near 53.

Medicine Bow:  Slight chance of rain, otherwise partly sunny today with a high near 78 and mostly cloudy overnight with a chance of rain and a low near 50.

 

South Central:  

Rawlins:   Chance of rain, otherwise partly sunny today with a high near 75 and cloudy overnight with a chance of rain and a low near 52.

Saratoga:   Chance of rain, otherwise partly sunny today with a high near 76 and mostly cloudy overnight with a chance of rain and a low near 49.

Hanna:   Chance of rain, otherwise partly sunny today with a high near 75 and mostly cloudy overnight with a chance of rain and a low near 51.

Authors

CK

Coy Knobel

Night Editor