National Weather Service Forecast for: Riverton WY
Issued by: National Weather Service Riverton, WY
Updated: 12:32 pm MDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 84. West wind 6 to 14 mph, with gusts as high as 21 mph.
Sunny

 Tonight

Tonight: Mostly cloudy, with a low around 42. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Mostly Cloudy

 Friday

Friday: Partly sunny, with a high near 80. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Partly Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 39. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Mostly Clear

 Saturday

Saturday: Mostly sunny, with a high near 83. Breezy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph.
Sunny then
Mostly Sunny
and Breezy
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 38. Breezy, with a west wind 18 to 23 mph becoming north northeast 8 to 13 mph after midnight. Winds could gust as high as 34 mph.
Mostly Cloudy
and Breezy
then Partly
Cloudy
 Sunday

Sunday: Sunny, with a high near 68. Northeast wind 6 to 8 mph.
Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 33.
Partly Cloudy

 Monday

Monday: Partly sunny, with a high near 73.
Partly Sunny
Hi 84 °F Lo 42 °F Hi 80 °F Lo 39 °F Hi 83 °F Lo 38 °F Hi 68 °F Lo 33 °F Hi 73 °F

Hazardous Weather Outlook
Red Flag Warning
 

This Afternoon
 
 Sunny, with a high near 84. West wind 6 to 14 mph, with gusts as high as 21 mph.
Tonight
 
 Mostly cloudy, with a low around 42. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Friday
 
 Partly sunny, with a high near 80. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
 
 Mostly clear, with a low around 39. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
 
 Mostly sunny, with a high near 83. Breezy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph.
Saturday Night
 
 Mostly cloudy, with a low around 38. Breezy, with a west wind 18 to 23 mph becoming north northeast 8 to 13 mph after midnight. Winds could gust as high as 34 mph.
Sunday
 
 Sunny, with a high near 68. Northeast wind 6 to 8 mph.
Sunday Night
 
 Partly cloudy, with a low around 33.
Monday
 
 Partly sunny, with a high near 73.
Monday Night
 
 Mostly cloudy, with a low around 40.
Tuesday
 
 Partly sunny, with a high near 79.
Tuesday Night
 
 Partly cloudy, with a low around 49.
Wednesday
 
 Sunny, with a high near 80. Windy.

 

Forecast from NOAA-NWS for Riverton WY.