National Weather Service Forecast for: Gillette WY
Issued by: National Weather Service Rapid City, SD
Updated: 5:46 pm MST Dec 22, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 32. South wind 5 to 10 mph, with gusts as high as 18 mph.
Mostly Cloudy

 Tuesday

Tuesday: Partly sunny, with a high near 61. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Partly Sunny

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 41. Southwest wind 14 to 16 mph, with gusts as high as 24 mph.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 61. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 30 mph.
Mostly Sunny
then Mostly
Sunny and
Breezy
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a steady temperature around 52. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 38 mph.
Mostly Cloudy
and Breezy

 Christmas
Day
Christmas Day: Mostly cloudy, then gradually becoming sunny, with a high near 60. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 33 mph.
Decreasing
Clouds and
Breezy
 Thursday
Night
Thursday Night: Mostly clear, with a low around 40. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 31 mph.
Mostly Clear
then Mostly
Clear and
Breezy
 Friday

Friday: Mostly sunny, with a high near 56. Breezy, with a southwest wind 20 to 28 mph, with gusts as high as 38 mph.
Mostly Sunny
and Breezy

 Friday
Night
Friday Night: Mostly cloudy, with a low around 26.
Mostly Cloudy
Lo 32 °F Hi 61 °F Lo 41 °F Hi 61 °F Lo 52 °F Hi 60 °F Lo 40 °F Hi 56 °F Lo 26 °F

 

Tonight
 
 Mostly cloudy, with a low around 32. South wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday
 
 Partly sunny, with a high near 61. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 41. Southwest wind 14 to 16 mph, with gusts as high as 24 mph.
Wednesday
 
 Mostly sunny, with a high near 61. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
 
 Mostly cloudy, with a steady temperature around 52. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 38 mph.
Christmas Day
 
 Mostly cloudy, then gradually becoming sunny, with a high near 60. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 33 mph.
Thursday Night
 
 Mostly clear, with a low around 40. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 31 mph.
Friday
 
 Mostly sunny, with a high near 56. Breezy, with a southwest wind 20 to 28 mph, with gusts as high as 38 mph.
Friday Night
 
 Mostly cloudy, with a low around 26.
Saturday
 
 A slight chance of snow before 11am. Partly sunny, with a high near 40.
Saturday Night
 
 Partly cloudy, with a low around 17.
Sunday
 
 Partly sunny, with a high near 42.
Sunday Night
 
 Partly cloudy, with a low around 25.
Monday
 
 Mostly sunny, with a high near 50.

 

Forecast from NOAA-NWS for Gillette WY.