Don Day's Wyoming Weather Forecast: Monday, September 28, 2026

Partly sunny to mostly cloudy with a chance of rain in Wyoming on Monday. Chance of rain overnight. Highs mainly in the 60s and 70s. Lows from the low 30s to low 50s.

CK
Coy Knobel

September 28, 20265 min read

Sublette County
"Bright, full moon looking out the kitchen window."
"Bright, full moon looking out the kitchen window." (Reader photo: Allison Bolgiano)

Partly sunny to mostly cloudy with a chance of rain in Wyoming on Monday. Chance of rain overnight. Highs mainly in the 60s and 70s. Lows from the low 30s to low 50s.

 

Central:  

Casper:  Chance of rain mainly after 3 p.m., otherwise partly sunny today with a high near 71 and mostly cloudy overnight with a chance of rain before midnight and a low near 48.

 

Riverton:  Chance of rain, otherwise partly sunny today with a high near 73 and mostly cloudy overnight with a slight chance of rain before 11 p.m. and a low near 47.

 

Shoshoni:   Chance of rain, otherwise partly sunny today with a high near 72 and cloudy then partly cloudy overnight with a slight chance of rain before 11 p.m. and a low near 49.

 

Southwest:  

Evanston:   Rain likely today with a high near 61 and mostly cloudy overnight with a chance of rain and a low near 41.

 

Green River:   Chance of rain, mostly cloudy today with a high near 65 and mostly cloudy overnight with a chance of rain and a low near 44.

 

Kemmerer:   Rain likely today with a high near 61 and mostly cloudy overnight with a slight chance of rain before 8 p.m. and a low near 39.

 

Western Wyoming:  

Pinedale:   Chance of rain mainly before noon, otherwise partly sunny today with a high near 60 and mostly cloudy overnight with a slight chance of rain mainly before 9 p.m. and a low near 36.

 

Alpine:  Chance of rain, otherwise partly sunny today with a high near 64 and partly cloudy overnight with a slight chance of rain mainly before 8 p.m. and a low near 38.

 

Big Piney:   Rain likely, mostly cloudy today with a high near 60 and mostly cloudy overnight with a slight chance of rain before 7 p.m. and a low near 33.

 

Northwest: 

Dubois:   Chance of rain, otherwise partly sunny today with a high near 59 and mostly cloudy overnight with a chance of rain before midnight and a low near 37.

 

Jackson:   Chance of rain mainly after 1 p.m., otherwise partly sunny today with a high near 62 and partly cloudy overnight with a slight chance of rain before 8 p.m. and a low near 35.

 

Old Faithful in Yellowstone National Park:   Chance of rain mainly before 2 p.m., otherwise partly sunny today with a high near 57 and partly cloudy overnight with a slight chance of rain before 8 p.m. and a low near 29.

 

Bighorn Basin:  

Thermopolis:   Chance of rain mainly before 11 a.m., otherwise partly sunny today with a high near 73 and mostly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 47.

 

Cody:   Chance of rain, gradually becoming mostly sunny today with a high near 70 and mostly cloudy, gradually becoming mostly clear overnight with a slight chance of rain before 11 p.m. and a low near 45.

 

Ten Sleep:  Chance of rain mainly before 1 p.m., otherwise mostly sunny today with a high near 72 and mostly cloudy, gradually becoming mostly clear overnight with a low near 50.

 

North Central:  

Buffalo:   Chance of rain, otherwise partly sunny today with a high near 68 and mostly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 49.

 

Sheridan:   Chance of rain, becoming mostly sunny today with a high near 68 and mostly cloudy overnight with patchy fog after 3 a.m. and a low near 41.

 

Big Horn:   Chance of rain, becoming mostly sunny today with a high near 66 and mostly cloudy overnight with a low near 44.

 

Northeast:  

Gillette:  Partly sunny today with a high near 70 and wind gusts as high as 25 mph. Mostly cloudy overnight with a slight chance of rain before midnight, a low near 48 and wind gusts as high as 23 mph.

 

Newcastle:   Slight chance of rain, otherwise partly sunny today with a high near 70 and wind gusts as high as 16 mph. Mostly cloudy overnight with a chance of rain mainly before midnight and a low near 51.

 

Upton:  Slight chance of rain, otherwise partly sunny today with a high near 73 and wind gusts as high as 20 mph. Mostly cloudy overnight with a chance of rain mainly before midnight, a low near 47 and wind gusts as high as 17 mph.

 

Eastern Plains:  

Torrington:  Chance of rain, mostly cloudy today with a high near 78 and cloudy overnight with a slight chance of rain and a low near 54.

 

Lusk:   Chance of rain, mostly cloudy today with a high near 74 and cloudy overnight with a chance of rain and a low near 49.

 

Midwest:  Slight chance of rain after 4 p.m., increasing clouds today with a high near 75 and partly cloudy, becoming cloudy late overnight with a chance of rain before midnight and a low near 47.

 

Southeast:  

Cheyenne:   Chance of rain after noon, mostly cloudy today with a high near 73 and cloudy overnight with a chance of rain and a low near 50.

 

Laramie:  Chance of rain, mostly cloudy today with a high near 65 and cloudy overnight with a chance of rain, patchy fog after 5 a.m. and a low near 45.

 

Medicine Bow:  Chance of rain, mostly cloudy today with a high near 67 and cloudy overnight with a chance of rain and a low near 43.

 

South Central:  

Rawlins:   Chance of rain, mostly cloudy today with a high near 65 and cloudy overnight with a chance of rain and a low near 45.

 

Saratoga:   Chance of rain, mostly cloudy today with a high near 65 and cloudy overnight with a chance of rain and a low near 42.

 

Hanna:   Chance of rain, mostly cloudy today with a high near 65 and cloudy overnight with a chance of rain and a low near 44.

Authors

CK

Coy Knobel

Night Editor