National Weather Service Forecast for: Rock Springs WY
Issued by: National Weather Service Riverton, WY
Updated: 8:17 pm MDT Jun 18, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 46. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Partly Cloudy

 Juneteenth

Juneteenth: Sunny, with a high near 87. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Sunny

 Friday
Night
Friday Night: Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Mostly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 84. Breezy, with a light and variable wind becoming west 18 to 23 mph in the morning. Winds could gust as high as 38 mph.
Mostly Sunny
then Sunny
and Breezy
 Saturday
Night
Saturday Night: Mostly clear, with a low around 46. Breezy, with a west wind 18 to 23 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.
Partly Cloudy
and Breezy
then Mostly
Clear
 Sunday

Sunday: Sunny, with a high near 80. Breezy, with a west southwest wind 5 to 10 mph becoming west northwest 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Sunny then
Sunny and
Breezy
 Sunday
Night
Sunday Night: Mostly clear, with a low around 45. North northwest wind 5 to 13 mph becoming east northeast after midnight. Winds could gust as high as 22 mph.
Mostly Clear

 Monday

Monday: Sunny, with a high near 84.
Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 45. Breezy.
Mostly Clear
then Clear
and Breezy
Lo 46 °F Hi 87 °F Lo 53 °F Hi 84 °F Lo 46 °F Hi 80 °F Lo 45 °F Hi 84 °F Lo 45 °F

 

Tonight
 
 Partly cloudy, with a low around 46. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Juneteenth
 
 Sunny, with a high near 87. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Friday Night
 
 Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Saturday
 
 Mostly sunny, with a high near 84. Breezy, with a light and variable wind becoming west 18 to 23 mph in the morning. Winds could gust as high as 38 mph.
Saturday Night
 
 Mostly clear, with a low around 46. Breezy, with a west wind 18 to 23 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.
Sunday
 
 Sunny, with a high near 80. Breezy, with a west southwest wind 5 to 10 mph becoming west northwest 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
 
 Mostly clear, with a low around 45. North northwest wind 5 to 13 mph becoming east northeast after midnight. Winds could gust as high as 22 mph.
Monday
 
 Sunny, with a high near 84.
Monday Night
 
 Mostly clear, with a low around 45. Breezy.
Tuesday
 
 Sunny, with a high near 86.
Tuesday Night
 
 Mostly clear, with a low around 48.
Wednesday
 
 Sunny, with a high near 88.
Wednesday Night
 
 Mostly clear, with a low around 49.
Thursday
 
 Sunny, with a high near 88.

 

Forecast from NOAA-NWS for Rock Springs WY.