Don Day's Wyoming Weather Forecast: Monday, July 20, 2026

Sunny and hot in much of Wyoming on Monday. Partly cloudy skies overnight with a chance of rain in some areas. Highs from the mid 80s to low 100s. Lows in the 50s and 60s.

CK
Coy Knobel

July 20, 20265 min read

Sheridan County
Double rainbow tonight in Banner, Wyoming
Double rainbow tonight in Banner, Wyoming (Reader photo: Hans Hilleby)

Sunny and hot in much of Wyoming on Monday. Partly cloudy skies overnight with a chance of rain in some areas. Highs from the mid 80s to low 100s. Lows in the 50s and 60s.

 

Central:  

Casper:  Sunny and hot today with a high near 98 and partly cloudy and breezy overnight with a low near 64 and wind gusts as high as 28 mph.

 

Riverton:  Sunny and hot today with a high near 98 and partly cloudy and breezy overnight with a low near 64 and wind gusts as high as 28 mph.

 

Glenrock:  Heat advisory until 6 p.m. tonight. Sunny and hot today with a high near 99 and partly cloudy overnight with a low near 62.

 

Southwest:  

Evanston Slight chance of rain after noon, otherwise mostly sunny today with a high near 88 and mostly cloudy overnight with a chance of rain and a low near 55.

 

Green River:  Mostly sunny today with a high near 96 and mostly cloudy and breezy overnight with a slight chance of rain before 11 p.m., a low near 64 and wind gusts as high as 28 mph.

 

Cokeville:  Sunny today with a high near 90 and mostly cloudy overnight with a slight chance of rain and a low near 51.

 

Western Wyoming:  

Pinedale:   Increasing clouds today with a high near 89 and mostly cloudy and breezy overnight with a slight chance of rain before midnight, a low near 56 and wind gusts as high as 24 mph.

 

Alpine Sunny and hot today with a high near 97 and mostly cloudy overnight with a low near 56.

 

Big Piney:  Sunny today with a high near 89 and mostly cloudy overnight with a slight chance of rain before midnight and a low near 53.

 

Northwest: 

Dubois Sunny today with a high near 86 and partly cloudy overnight with a slight chance of rain before 7 p.m. and a low near 54.

 

Jackson:  Sunny today with a high near 94 and partly cloudy overnight with a low near 56.

 

Old Faithful in Yellowstone National Park:  Sunny today with a high near 86 and partly cloudy overnight with a low near 47.

 

Bighorn Basin:  

Thermopolis:  Sunny and hot today with a high near 98 and partly cloudy and breezy overnight with a low near 66 and wind gusts as high as 26 mph.

 

Cody:  Sunny and breezy today with a high near 91 and wind gusts as high as 25 mph. Partly cloudy and breezy overnight with a low near 62 and wind gusts as high as 28 mph.

 

Ten Sleep:  Sunny and hot today with a high near 97 and wind gusts as high as 21 mph. Partly cloudy and breezy overnight with a low near 67 and wind gusts as high as 23 mph.

 

North Central:  

Buffalo:   Sunny and breezy today with a high near 91 and wind gusts as high as 24 mph. Partly cloudy and breezy overnight with a low near 63 and wind gusts as high as 24 mph.

 

Sheridan:  Patchy smoke, sunny and hot today with a high near 94 and partly cloudy overnight with patchy smoke and a low near 58.

 

Big Horn:  Patchy smoke, sunny and hot today with a high near 92 and partly cloudy overnight with patchy smoke and a low near 59.

 

Northeast:  

Gillette:  Areas of smoke, sunny today with a high near 95 and wind gusts as high as 26 mph. Increasing clouds overnight with areas of smoke, a low near 61 and wind gusts as high as 28 mph.

 

Newcastle:   Areas of smoke and a slight chance of rain after noon, otherwise sunny today with a high near 97 and wind gusts as high as 20 mph. Partly cloudy overnight with areas of smoke, a low near 66 and wind gusts as high as 23 mph.

 

Hulett:  Areas of smoke, sunny today with a high near 95 and wind gusts as high as 20 mph. Partly cloudy overnight with areas of smoke, a low near 61 and wind gusts as high as 20 mph.

 

Eastern Plains:  

Torrington:  Heat advisory until 6 p.m. tonight. Sunny and hot today with a high near 102 and mostly cloudy overnight with a chance of rain and a low near 67.

 

Douglas:  Heat advisory until 6 p.m. tonight. Sunny and hot today with a high near 99 and partly cloudy overnight with a slight chance of rain before 10 p.m. and a low near 63.

 

Kaycee:  Sunny and breezy today with a high near 95 and wind gusts as high as 26 mph. Partly cloudy and breezy overnight with a low near 60 and wind gusts as high as 30 mph.

 

Southeast:  

Cheyenne:   Slight chance of rain after 3 p.m., increasing clouds and hot today with a high near 94 and mostly cloudy overnight with a chance of rain and a low near 62.

 

Laramie:  Slight chance of rain after 1 p.m., increasing clouds today with a high near 87 and mostly cloudy overnight with a slight chance of rain before 11 p.m. and a low near 57.

 

Chugwater:   Sunny and hot today with a high near 95 and mostly cloudy overnight with a chance of rain mainly before 9 p.m. and a low near 63.

 

South Central:  

Rawlins:  Sunny and hot today with a high near 91 and partly cloudy overnight with a low near 62.

 

Saratoga:  Increasing clouds and hot today with a high near 92 and gradually becoming mostly clear overnight with a low near 56.

 

Wamsutter:   Sunny today with a high near 91 and mostly cloudy and breezy overnight with a slight chance of rain before 10 p.m., a low near 58 and wind gusts as high as 22 mph.

Authors

CK

Coy Knobel

Night Editor