Don Day's Wyoming Weather Forecast: Thursday, September 17, 2026

Clouds, chance of rain in Wyoming on Thursday. Chance of rain in much of the state overnight. Highs from the mid 60s to low 80s. Lows from near 40 to upper 50s.

CK
Coy Knobel

September 17, 20265 min read

Park County
"Looking west from Wapiti."
"Looking west from Wapiti." (Reader photo: Grace Caserta)

Clouds, chance of rain in Wyoming on Thursday. Chance of rain in much of the state overnight. Highs from the mid 60s to low 80s. Lows from near 40 to upper 50s.

 

Central:  

Casper:  Chance of rain, cloudy today with a high near 73 and mostly cloudy overnight with a low near 53 and wind gusts as high as 21 mph.

 

Lander:  Chance of rain, gradually becoming mostly sunny today with a high near 74 and partly cloudy overnight with a slight chance of rain before midnight and a low near 51.

 

Jeffrey City:   Rain likely, cloudy today with a high near 71 and partly cloudy overnight with a slight chance of rain before 7 p.m., a low near 48 and wind gusts as high as 21 mph.

 

Southwest:  

Evanston  Chance of rain, mostly cloudy today with a high near 72 and partly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 45.

 

Rock Springs:   Chance of rain, gradually becoming mostly sunny today with a high near 75 and partly cloudy overnight a low near 48.

 

South Pass:   Chance of rain, gradually becoming mostly sunny today with a high near 66 and partly cloudy overnight with a slight chance of rain before midnight and a low near 46.

 

Western Wyoming:  

Pinedale:   Chance of rain, mostly cloudy today with a high near 70 and partly cloudy overnight with a chance of rain and a low near 43.

 

Afton Chance of rain, gradually becoming mostly sunny today with a high near 74 and partly cloudy overnight with rain likely and a low near 45.

 

La Barge:   Chance of rain, gradually clearing today with a high near 71 and gradually becoming mostly clear overnight with a chance of rain and a low near 39.

 

Northwest: 

Dubois  Chance of rain, mostly cloudy today with a high near 68 and partly cloudy overnight with a chance of rain and a low near 45.

 

Jackson:   Chance of rain, mostly cloudy today with a high near 75 and rain likely overnight with a low near 44.

 

Old Faithful in Yellowstone National Park:   Rain likely, mostly cloudy today with a high near 69 and partly cloudy overnight with a chance of rain and a low near 39.

 

Bighorn Basin:  

Thermopolis:   Slight chance of rain, cloudy today with a high near 78 and partly cloudy overnight with a slight chance of rain before 10 p.m. and a low near 52.

 

Cody:   Slight chance of rain after 1 p.m., mostly cloudy today with a high near 77 and cloudy, gradually becoming partly cloudy overnight with a slight chance of rain before 8 p.m. and a low near 55.

 

Greybull:  Slight chance of rain after noon, mostly cloudy today with a high near 79 and mostly cloudy overnight with a slight chance of rain before 10 p.m. and a low near 52.

 

North Central:  

Buffalo:   Chance of rain, cloudy and breezy today with a high near 77 and wind gusts as high as 29 mph. Breezy, cloudy, becoming partly cloudy overnight with a slight chance of rain before 9 p.m., a low near 58 and wind gusts as high as 23 mph.

 

Sheridan:   Patchy fog before 9 a.m., chance of rain mainly after 5 p.m., increasing clouds today with a high near 81 and mostly cloudy overnight with a slight chance of rain before 9 p.m., patchy fog after 3 a.m. and a low near 50.

 

Story:   Chance of rain, mostly cloudy today with a high near 78 and wind from 7-17 mph. Cloudy, gradually becoming partly cloudy overnight with a chance of rain mainly before 7 p.m. and a low near 55.

 

Northeast:  

Gillette:  Rain likely, mostly cloudy today with a high near 75 and wind gusts as high as 31 mph. Cloudy, gradually becoming partly cloudy overnight with a chance of rain before midnight, a low near 54 and wind gusts as high as 28 mph.

 

Newcastle:   Rain likely, mostly cloudy today with a high near 75 and wind gusts as high as 22 mph. Mostly cloudy overnight with rain likely, a low near 55 and wind gusts as high as 18 mph.

 

Sundance:  Rain likely, mostly cloudy today with a high near 73 and wind gusts as high as 17 mph. Mostly cloudy overnight with rain likely mainly before midnight and a low near 55.

 

Eastern Plains:  

Torrington:  Rain likely, mostly cloudy today with a high near 77 and mostly cloudy overnight with a chance of rain before midnight and a low near 55.

 

Wheatland:   Rain likely today with a high near 73 and mostly cloudy overnight with a chance of rain before midnight and a low near 58.

 

Wright:  Rain likely, cloudy today with a high near 72 and wind gusts as high as 30 mph. Mostly cloudy overnight with a chance of rain before midnight, a low near 53 and wind gusts as high as 25 mph.

 

Southeast:  

Cheyenne:   Chance of rain, mostly cloudy today with a high near 73 and mostly cloudy overnight with a slight chance of rain before midnight and a low near 53.

 

Laramie:  Rain likely, mostly cloudy today with a high near 70 and mostly cloudy overnight with a slight chance of rain before 9 p.m. and a low near 49.

 

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

 

South Central:  

Rawlins:   Rain likely today with a high near 68 and partly cloudy overnight with a low near 51.

 

Encampment:   Rain likely, cloudy today with a high near 66 and mostly cloudy overnight with a low near 47.

 

Baggs:   Rain likely today with a high near 69 and partly cloudy overnight with a low near 45.

Authors

CK

Coy Knobel

Night Editor