Don Day's Wyoming Weather Forecast: Sunday, September 27, 2026

Partly sunny, chance of rain in much of Wyoming on Sunday. Chance of rain overnight. Highs from the mid 60s to low 80s. Lows in the 40s and 50s.

CK
Coy Knobel

September 27, 20265 min read

Laramie County
"An eye catching high arched double rainbow encasing all of our homes, including the homestead."
"An eye catching high arched double rainbow encasing all of our homes, including the homestead." (Reader photo: Laura Drake)

Partly sunny, chance of rain in much of Wyoming on Sunday. Chance of rain overnight. Highs from the mid 60s to low 80s. Lows in the 40s and 50s.

 

Central:  

Casper:  Partly sunny today with a high near 78 and wind gusts as high as 21 mph. Mostly cloudy overnight with a chance of rain, a low near 53 and wind gusts as high as 20 mph.

 

Lander:  Slight chance of rain after 5 p.m., otherwise partly sunny today with a high near 76 and mostly cloudy overnight with a chance of rain and a low near 50.

 

Glenrock:   Chance of rain after 3 p.m., otherwise partly sunny today with a high near 76 and mostly cloudy overnight with a chance of rain mainly before midnight and a low near 51.

 

Southwest:  

Evanston:   Slight chance of rain after 3 p.m., mostly cloudy today with a high near 71 and partly cloudy overnight with a chance of rain and a low near 46.

 

Rock Springs:   Slight chance of rain after 5 p.m., otherwise partly sunny today with a high near 76 and wind gusts as high as 23 mph. Mostly cloudy overnight with a chance of rain, a low near 46 and wind gusts as high as 23 mph.

 

Lyman:   Slight chance of rain after noon, mostly cloudy today with a high near 73 and mostly cloudy overnight with a chance of rain and a low near 47.

 

Western Wyoming:  

Pinedale:   Increasing clouds today with a high near 68 and wind gusts as high as 22 mph. Cloudy, gradually becoming partly cloudy overnight with a chance of rain mainly after 2 a.m. and a low near 42.

 

Afton:  Mostly cloudy today with a high near 71 and wind gusts as high as 20 mph. Mostly cloudy overnight with a chance of rain and a low near 42.

 

La Barge:   Slight chance of rain after 5 p.m., cloudy, gradually becoming mostly sunny, breezy today with a high near 70 and wind gusts as high as 24 mph. Mostly cloudy overnight with a chance of rain, a low near 41 and wind gusts as high as 20 mph.

 

Northwest: 

Dubois:   Increasing clouds today with a high near 65 and cloudy, gradually becoming partly cloudy overnight with a chance of rain and a low near 41.

 

Jackson:   Mostly cloudy today with a high near 71 and wind gusts as high as 21 mph. Mostly cloudy overnight with a chance of rain and a low near 41.

 

Old Faithful in Yellowstone National Park:   Slight chance of rain before 7 a.m., mostly cloudy today with a high near 62 and wind gusts as high as 21 mph. Cloudy, gradually becoming partly cloudy overnight with a chance of rain and a low near 37.

 

Bighorn Basin:  

Thermopolis:   Increasing clouds today with a high near 77 and cloudy, gradually becoming partly cloudy overnight with a slight chance of rain after 3 a.m. and a low near 49.

 

Cody:   Partly sunny today with a high near 68 and mostly cloudy overnight with a slight chance of rain and a low near 47.

 

Greybull:  Partly sunny today with a high near 74 and cloudy, gradually becoming partly cloudy overnight with a chance of rain before 9 p.m., a low near 46 and wind gusts as high as 20 mph.

 

North Central:  

Buffalo:   Partly sunny today with a high near 68 and cloudy, gradually becoming partly cloudy overnight with a chance of rain mainly before 10 p.m. and a low near 53.

 

Sheridan:   Mostly cloudy today with a high near 69 and cloudy overnight with a slight chance of rain before 11 p.m. and a low near 46.

 

Story:   Partly sunny today with a high near 66 and cloudy overnight with a chance of rain and a low near 49.

 

Northeast:  

Gillette:  Mostly cloudy today with a high near 73 and wind gusts as high as 24 mph. Mostly cloudy and breezy overnight with a chance of rain, a low near 53 and wind gusts as high as 29 mph.

 

Newcastle:   Partly sunny today with a high near 71 and wind gusts as high as 21 mph. Mostly cloudy overnight with a chance of rain, a low near 56 and wind gusts as high as 21 mph.

 

Sundance:  Partly sunny today with a high near 63 and wind gusts as high as 16 mph. Mostly cloudy overnight with a chance of rain, a low near 53 and wind gusts as high as 20 mph.

 

Eastern Plains:  

Torrington:  Mostly sunny today with a high near 81 and mostly cloudy overnight with a chance of rain and a low near 56.

 

Douglas:   Chance of rain after 3 p.m., otherwise mostly sunny today with a high near 77 and cloudy, gradually becoming partly cloudy overnight with a chance of rain and a low near 50.

 

Guernsey:  Mostly sunny today with a high near 80 and mostly cloudy overnight with a chance of rain before midnight and a low near 56.

 

Southeast:  

Cheyenne:   Mostly sunny today with a high near 77 and mostly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 52.

 

Laramie:  Chance of rain after 3 p.m., otherwise mostly sunny today with a high near 72 and mostly cloudy overnight with a slight chance of rain before midnight and a low near 48.

 

Chugwater:  Slight chance of rain after 3 p.m., increasing clouds today with a high near 77 and mostly cloudy overnight with a slight chance of rain before midnight and a low near 55.

 

South Central:  

Rawlins:   Partly sunny today with a high near 75 and wind gusts as high as 25 mph. Mostly cloudy overnight with a chance of rain mainly after midnight and a low near 50.

 

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

 

Wamsutter:   Breezy, becoming mostly sunny today with a high near 73 and wind gusts as high as 25 mph. Mostly cloudy overnight with a chance of rain, a low near 46 and wind gusts as high as 22 mph.

Authors

CK

Coy Knobel

Night Editor