National Weather Service Forecast for: Mills WY
Issued by: National Weather Service Riverton, WY
Updated: 7:03 am MST Dec 22, 2025
 
Today

Today: Mostly sunny, with a high near 59. Windy, with a west southwest wind 25 to 30 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 45 mph.
Mostly Sunny
and Windy

 Tonight

Tonight: Partly cloudy, with a low around 45. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 32 mph.
Partly Cloudy
then Partly
Cloudy and
Breezy
 Tuesday

Tuesday: Partly sunny, with a high near 62. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 31 mph.
Partly Sunny
and Breezy

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 47. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 34 mph.
Mostly Cloudy
and Breezy

 Wednesday

Wednesday: Mostly sunny, with a high near 61. Windy, with a southwest wind 26 to 32 mph, with gusts as high as 44 mph.
Mostly Sunny
and Windy

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 49. Windy, with a southwest wind 25 to 34 mph, with gusts as high as 50 mph.
Mostly Cloudy
and Windy

 Christmas
Day
Christmas Day: A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 58. Windy, with a southwest wind 23 to 33 mph, with gusts as high as 50 mph.
Chance
Showers and
Windy
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 40. Breezy.
Partly Cloudy
and Breezy

 Friday

Friday: Partly sunny, with a high near 53. Windy.
Partly Sunny
and Windy
Hi 59 °F Lo 45 °F Hi 62 °F Lo 47 °F Hi 61 °F Lo 49 °F Hi 58 °F Lo 40 °F Hi 53 °F

Hazardous Weather Outlook
 

Today
 
 Mostly sunny, with a high near 59. Windy, with a west southwest wind 25 to 30 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 45 mph.
Tonight
 
 Partly cloudy, with a low around 45. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 32 mph.
Tuesday
 
 Partly sunny, with a high near 62. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 31 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 47. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 34 mph.
Wednesday
 
 Mostly sunny, with a high near 61. Windy, with a southwest wind 26 to 32 mph, with gusts as high as 44 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 49. Windy, with a southwest wind 25 to 34 mph, with gusts as high as 50 mph.
Christmas Day
 
 A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 58. Windy, with a southwest wind 23 to 33 mph, with gusts as high as 50 mph.
Thursday Night
 
 Partly cloudy, with a low around 40. Breezy.
Friday
 
 Partly sunny, with a high near 53. Windy.
Friday Night
 
 Mostly cloudy, with a low around 30. Breezy.
Saturday
 
 Partly sunny, with a high near 46. Breezy.
Saturday Night
 
 Partly cloudy, with a low around 26.
Sunday
 
 Mostly sunny, with a high near 47. Breezy.

 

Forecast from NOAA-NWS for Mills WY.