Don Day's Wyoming Weather Forecast: Wednesday, October 21, 2026

Mostly sunny to sunny in Wyoming on Wednesday. Mix of clear and cloudy skies overnight. Highs in the 60s and 70s. Lows mainly in the 30s and 40s.

CK
Coy Knobel

October 21, 20264 min read

Teton County
This October bliss moment shimmered forth by The Chapel of the Transfiguration in Grand Teton National Park.
This October bliss moment shimmered forth by The Chapel of the Transfiguration in Grand Teton National Park. (Reader photo: Karen Zahn-Anderson from Smoot, WY)

Mostly sunny to sunny in Wyoming on Wednesday. Mix of clear and cloudy skies overnight. Highs in the 60s and 70s. Lows mainly in the 30s and 40s.

 

Central:  

Casper:  Gradually becoming sunny today with a high near 73 and wind gusts as high as 22 mph. Partly cloudy overnight with a low near 46. 

 

Lander:  Sunny today with a high near 67 and increasing clouds overnight with a low near 45.

 

Glenrock:   Sunny today with a high near 70 and partly cloudy overnight with a low near 44.

 

Southwest:  

Evanston:   Increasing clouds today with a high near 64 and mostly cloudy overnight with a low near 40.

 

Rock Springs:   Sunny today with a high near 67 and wind gusts as high as 26 mph. Mostly cloudy and breezy overnight with a low near 42 and wind gusts as high as 28 mph.

 

Lyman:   Mostly sunny today with a high near 66 and mostly cloudy overnight with a low near 41.

 

Western Wyoming:  

Pinedale:   Sunny today with a high near 60 and partly cloudy overnight with a low near 36.

 

Afton:  Sunny today with a high near 64 and partly cloudy overnight with a low near 38.

 

La Barge:   Sunny today with a high near 62 and increasing clouds overnight with a low near 35.

 

Northwest: 

Dubois:   Sunny today with a high near 61 and partly cloudy overnight with a low near 37.

 

Jackson:   Mostly sunny today with a high near 66 and partly cloudy overnight with a low near 34.

 

Old Faithful in Yellowstone National Park:   Mostly sunny today with a high near 59 and mostly clear overnight with a low near 31.

 

Bighorn Basin:  

Thermopolis:   Sunny and breezy today with a high near 71 and wind gusts as high as 23 mph. Mostly clear overnight with a low near 46.

 

Cody:   Sunny today with a high near 70 and mostly clear overnight with a low near 46.

 

Worland:   Sunny today with a high near 74 and mostly clear overnight with a low near 43.

 

North Central:  

Buffalo:   Sunny and breezy today with a high near 73 and wind gusts as high as 34 mph. Mostly clear overnight with a low near 50.

 

Sheridan:   Sunny today with a high near 75 and mostly clear overnight with a low near 41.

 

Clearmont:   Sunny today with a high near 78 and 17-22 mph wind. Mostly clear overnight with a low near 44.

 

Northeast:  

Gillette:  Sunny today with a high near 73 and wind gusts as high as 28 mph. Mostly clear overnight with a low near 47 and wind gusts as high as 32 mph.

 

Newcastle:   Sunny today with a high near 69 and wind gusts as high as 17 mph. Mostly clear overnight with a low near 50 and wind gusts as high as 18 mph.

 

Sundance:  Sunny today with a high near 68 and wind gusts as high as 18 mph. Mostly clear overnight with a low near 51 and wind gusts as high as 23 mph.

 

Eastern Plains:  

Torrington:  Sunny today with a high near 70 and partly cloudy overnight with a low near 46.

 

Douglas:   Sunny today with a high near 69 and partly cloudy overnight with a low near 43.

 

Guernsey:  Sunny today with a high near 70 and partly cloudy overnight with a low near 48.

 

Southeast:  

Cheyenne:   Sunny today with a high near 67 and gradually becoming mostly clear overnight with a low near 46.

 

Laramie:  Mostly sunny today with a high near 64 and mostly cloudy overnight with a low near 44.

 

Chugwater:  Mostly sunny today with a high near 69 and cloudy, gradually becoming partly cloudy overnight with a low near 49.

 

South Central:  

Rawlins:   Increasing clouds today with a high near 64 and mostly cloudy overnight with a low near 44.

 

Saratoga:   Mostly sunny today with a high near 66 and mostly cloudy overnight with a low near 42.

 

Wamsutter:   Breezy, gradually becoming sunny today with a high near 64 and wind gusts as high as 24 mph.  Mostly cloudy overnight with a low near 43 and wind gusts as high as 21 mph.

Authors

CK

Coy Knobel

Night Editor