National Weather Service Forecast for: Rock Springs WY
Issued by: National Weather Service Riverton, WY
Updated: 5:17 pm MST Dec 17, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 20. Windy, with a west wind 27 to 32 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 48 mph.
Partly Cloudy
and Windy
 Thursday

Thursday: Increasing clouds, with a high near 41. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Increasing
Clouds
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 32. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Partly Cloudy
and Breezy
 Friday

Friday: Mostly sunny, with a high near 55. Windy, with a west wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Mostly Sunny
and Windy
 Friday
Night
Friday Night: A chance of rain showers before 11pm, then rain and snow showers likely. Mostly cloudy, with a low around 31. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Rain/Snow
Likely and
Windy
 Saturday

Saturday: A 30 percent chance of snow showers, mainly before 11am. Partly sunny, with a high near 41. Breezy, with a west wind 15 to 18 mph, with gusts as high as 31 mph.
Chance Snow
Showers and
Breezy
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 27. Southwest wind 6 to 9 mph.
Mostly Cloudy

 Sunday

Sunday: A slight chance of rain and snow showers. Mostly cloudy, with a high near 46. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
 Sunday
Night
Sunday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 34.
Slight Chance
Showers then
Mostly Cloudy
Lo 20 °F Hi 41 °F Lo 32 °F Hi 55 °F Lo 31 °F Hi 41 °F Lo 27 °F Hi 46 °F Lo 34 °F

Hazardous Weather Outlook
 

Tonight
 
 Partly cloudy, with a low around 20. Windy, with a west wind 27 to 32 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 48 mph.
Thursday
 
 Increasing clouds, with a high near 41. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
 
 Partly cloudy, with a low around 32. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Friday
 
 Mostly sunny, with a high near 55. Windy, with a west wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Friday Night
 
 A chance of rain showers before 11pm, then rain and snow showers likely. Mostly cloudy, with a low around 31. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
 
 A 30 percent chance of snow showers, mainly before 11am. Partly sunny, with a high near 41. Breezy, with a west wind 15 to 18 mph, with gusts as high as 31 mph.
Saturday Night
 
 Mostly cloudy, with a low around 27. Southwest wind 6 to 9 mph.
Sunday
 
 A slight chance of rain and snow showers. Mostly cloudy, with a high near 46. Chance of precipitation is 20%.
Sunday Night
 
 A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 34.
Monday
 
 Partly sunny, with a high near 51.
Monday Night
 
 Mostly cloudy, with a low around 30.
Tuesday
 
 Partly sunny, with a high near 51.
Tuesday Night
 
 Mostly cloudy, with a low around 31.
Wednesday
 
 A chance of showers. Partly sunny, with a high near 51.

 

Forecast from NOAA-NWS for Rock Springs WY.