National Weather Service Forecast for: Mills WY
Issued by: National Weather Service Riverton, WY
Updated: 1:49 pm MDT May 4, 2026
 
This
Afternoon
This Afternoon: Isolated showers and thunderstorms after 5pm. Mostly sunny, with a high near 61. Breezy, with a north northeast wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 10%.
Isolated
T-storms and
Breezy
 Tonight

Tonight: Rain and snow showers. Some thunder is also possible. Low around 34. Breezy, with a north northeast wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Showers
Likely and
Breezy then
Rain/Snow
 Tuesday

Tuesday: Snow showers, possibly mixed with rain. Some thunder is also possible. High near 38. Northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Rain/Snow

 Tuesday
Night
Tuesday Night: Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 25. North northeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Snow Showers
Likely then
Scattered
Snow Showers
 Wednesday

Wednesday: A 20 percent chance of snow showers. Mostly sunny, with a high near 51. Northeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Slight Chance
Snow Showers

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 34. West northwest wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Mostly Clear

 Thursday

Thursday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Breezy, with a southwest wind 14 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph.
Breezy.
Mostly Sunny
then Chance
Showers
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Chance
Showers

 Friday

Friday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.
Partly Sunny
then Slight
Chance
T-storms
Hi 61 °F Lo 34 °F Hi 38 °F Lo 25 °F Hi 51 °F Lo 34 °F Hi 70 °F Lo 41 °F Hi 69 °F

Freeze Watch
Hazardous Weather Outlook
 

This Afternoon
 
 Isolated showers and thunderstorms after 5pm. Mostly sunny, with a high near 61. Breezy, with a north northeast wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 10%.
Tonight
 
 Rain and snow showers. Some thunder is also possible. Low around 34. Breezy, with a north northeast wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
 
 Snow showers, possibly mixed with rain. Some thunder is also possible. High near 38. Northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
 
 Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 25. North northeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
 
 A 20 percent chance of snow showers. Mostly sunny, with a high near 51. Northeast wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
 
 Mostly clear, with a low around 34. West northwest wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Thursday
 
 A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Breezy, with a southwest wind 14 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph.
Thursday Night
 
 A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Friday
 
 A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.
Friday Night
 
 A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 20%.
Saturday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Sunday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 62.

 

Forecast from NOAA-NWS for Mills WY.