Don Day's Wyoming Weather Forecast: Saturday, September 19, 2026

Chance of rain in Wyoming on Saturday and overnight. Fog, flood watch in some areas. Cooler with highs from near 60 to mid-70s. Lows from near 30 to low 50s.

CK
Coy Knobel

September 19, 20265 min read

Sublette County
"Love the sunsets in Pinedale."
"Love the sunsets in Pinedale." (Reader photo: Shane Costello)

Chance of rain in Wyoming on Saturday and overnight. Fog, flood watch in some areas. Cooler with highs from near 60 to mid-70s. Lows from near 30 to low 50s.

 

Central:  

CasperChance of rain mainly after 4 p.m., gradually becoming sunny today with a high near 72 and wind gusts as high as 21 mph. Mostly cloudy overnight with rain likely and a low near 46.

Lander:  Patchy fog before 9 a.m., chance of rain mainly after 3 p.m., otherwise mostly sunny today with a high near 68 and mostly cloudy overnight with rain likely and a low near 45.

Shoshoni:   Patchy fog before 9 a.m., chance of rain mainly after 2 p.m., otherwise mostly sunny today with a high near 70 and rain likely overnight with a low near 48 and wind gusts as high as 20 mph.

 

Southwest:  

Evanston:   Slight chance of rain, otherwise mostly sunny today with a high near 61 and mostly clear overnight with a low near 35.

Rock Springs:   Patchy fog before 9 a.m., chance of rain mainly after 1 p.m., increasing clouds today with a high near 66 and wind gusts as high as 22 mph. Mostly cloudy overnight with a slight chance of rain before 9 p.m., a low near 39 and wind gusts as high as 20 mph.

Lyman:   Chance of rain after noon, otherwise mostly sunny today with a high near 64 and partly cloudy overnight with a low near 38.

 

Western Wyoming:  

Pinedale:   Patchy fog before 10 a.m., chance of rain mainly before 3 p.m., gradually becoming sunny today with a high near 60 and cloudy, gradually becoming partly cloudy overnight with a slight chance of rain before 9 p.m., patchy fog after 5 a.m. and a low near 33.

Afton:  Patchy fog before 11 a.m., rain likely today with a high near 61 and mostly cloudy overnight with a chance of rain mainly before 8 p.m., patchy fog after 11 p.m. and a low near 35.

La Barge:   Chance of rain mainly after 4 p.m., otherwise mostly sunny today with a high near 62 and partly cloudy overnight with a slight chance of rain mainly before 9 p.m. and a low near 29.

 

Northwest: 

Dubois:   Patchy fog before 7 a.m., rain likely mainly before 2 p.m., increasing clouds today with a high near 58 and cloudy overnight with a chance of rain before 1 a.m. and a low near 37.

Jackson:   Patchy fog before 10 a.m., rain likely today with a high near 62 and mostly cloudy overnight with a chance of rain mainly before 8 p.m., patchy fog after 1 a.m. and a low near 35.

Old Faithful in Yellowstone National Park:   Flood watch through Sunday. Patchy fog before noon, chance of rain, mostly cloudy today with a high near 54 and mostly cloudy overnight with a chance of rain, patchy fog after 8 p.m. and a low near 32.

 

Bighorn Basin:  

Thermopolis:   Patchy fog before 9 a.m., rain likely, otherwise mostly sunny today with a high near 69 and rain likely overnight with patchy fog after 3 a.m. and a low near 46.

Cody:   Flood watch through Sunday. Patchy fog before 9 a.m., rain likely, increasing clouds today with a high near 62 and rain likely overnight with patchy fog before 3 a.m. and a low near 47.

Powell:  Rain likely, increasing clouds and breezy today with a high near 62 and wind gusts as high as 30 mph. Mostly cloudy and breezy overnight with rain likely, a low near 46 and wind gusts as high as 31 mph.

 

North Central:  

Buffalo:   Flood watch through Sunday. Rain likely today with a high near 65 and rain near certain overnight with a low near 51.

Sheridan:   Flood watch through Sunday. Patchy fog before noon, rain today with a high near 66 and rain near certain overnight with a low near 47.

Ranchester:   Flood watch through Sunday. Patchy fog, rain today with a high near 65 and rain likely overnight a low near 47.

 

Northeast:  

Gillette:  Chance of rain, cloudy today with a high near 69 and wind gusts as high as 22 mph. Cloudy overnight with rain likely, a low near 51 and wind gusts as high as 23 mph.

Newcastle:   Patchy fog before 8 a.m., rain likely, cloudy today with a high near 68 and wind gusts as high as 16 mph. Cloudy overnight with rain likely and a low near 52.

Sundance:  Patchy fog before 9 a.m., rain likely, cloudy today with a high near 63 and cloudy overnight with rain likely and a low near 51.

 

Eastern Plains:  

Torrington:  Slight chance of rain after 3 p.m., otherwise mostly sunny today with a high near 77 and mostly cloudy overnight with a chance of rain before 9 p.m. and a low near 51.

Lusk:   Patchy fog before 8 a.m., slight chance of rain after 3 p.m., otherwise mostly sunny today with a high near 70 and mostly cloudy overnight with a chance of rain and a low near 47.

Guernsey:  Chance of rain after 3 p.m., otherwise mostly sunny today with a high near 74 and mostly cloudy overnight with a chance of rain before 9 p.m. and a low near 53.

 

Southeast:  

Cheyenne:   Chance of rain, becoming mostly cloudy today with a high near 71 and partly cloudy overnight with a low near 46.

Laramie:  Chance of rain, otherwise mostly sunny today with a high near 65 and partly cloudy overnight with a slight chance of rain and a low near 42.

Medicine Bow:  Slight chance of rain, gradually becoming sunny today with a high near 66 and partly cloudy overnight with a chance of rain before 9 p.m. and a low near 40.

 

South Central:  

Rawlins:   Chance of rain after 3 p.m., gradually becoming sunny today with a high near 65 and mostly cloudy overnight with a low near 42.

Encampment:   Chance of rain, partly sunny today with a high near 62 and mostly cloudy overnight with a slight chance of rain before midnight and a low near 40.

Hanna:   Slight chance of rain, partly sunny today with a high near 62 and wind gusts as high as 25 mph. Partly cloudy overnight with a chance of rain before 9 p.m. and a low near 41.


Authors

CK

Coy Knobel

Night Editor