National Weather Service Forecast for: Riverton WY
Issued by: National Weather Service Riverton, WY
Updated: 1:49 pm MDT May 4, 2026
 
This
Afternoon
This Afternoon: Isolated showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 65. Breezy, with a north northeast wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Isolated
T-storms and
Breezy

 Tonight

Tonight: Rain showers likely before 3am, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 36. Breezy, with a northeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Scattered
Showers and
Breezy then
Rain/Snow
Likely
 Tuesday

Tuesday: Rain and snow showers likely before 10am, then scattered snow showers between 10am and 1pm, then scattered rain and snow showers after 1pm. Some thunder is also possible. Cloudy, with a high near 41. Breezy, with a north northeast wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Rain/Snow
Likely and
Breezy

 Tuesday
Night
Tuesday Night: Scattered rain and snow showers before 9pm, then scattered snow showers between 9pm and 3am. Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Scattered
Rain/Snow and
Blustery then
Scattered
Snow Showers
 Wednesday

Wednesday: Sunny, with a high near 54. West wind 5 to 7 mph becoming north northwest in the morning.
Sunny


 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 31. Southwest wind around 7 mph.
Mostly Clear


 Thursday

Thursday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Breezy, with a southwest wind 6 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Mostly Sunny
then Slight
Chance
T-storms and
Breezy
 Thursday
Night
Thursday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 41.
Slight Chance
Showers then
Mostly Cloudy

 Friday

Friday: Mostly sunny, with a high near 73.
Mostly Sunny
Hi 65 °F Lo 36 °F Hi 41 °F Lo 28 °F Hi 54 °F Lo 31 °F Hi 72 °F Lo 41 °F Hi 73 °F

Freeze Watch
Hazardous Weather Outlook
 

This Afternoon
 
 Isolated showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 65. Breezy, with a north northeast wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
 
 Rain showers likely before 3am, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 36. Breezy, with a northeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
 
 Rain and snow showers likely before 10am, then scattered snow showers between 10am and 1pm, then scattered rain and snow showers after 1pm. Some thunder is also possible. Cloudy, with a high near 41. Breezy, with a north northeast wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
 
 Scattered rain and snow showers before 9pm, then scattered snow showers between 9pm and 3am. Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday
 
 Sunny, with a high near 54. West wind 5 to 7 mph becoming north northwest in the morning.
Wednesday Night
 
 Mostly clear, with a low around 31. Southwest wind around 7 mph.
Thursday
 
 A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Breezy, with a southwest wind 6 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
 
 A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 41.
Friday
 
 Mostly sunny, with a high near 73.
Friday Night
 
 Mostly cloudy, with a low around 44.
Saturday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 67.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 39.
Sunday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Riverton WY.