National Weather Service Forecast for: Gillette WY
Issued by: National Weather Service Rapid City, SD
Updated: 3:06 am MST Dec 22, 2025
 
Today

Today: Mostly sunny, with a high near 59. Breezy, with a southwest wind 24 to 29 mph becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 43 mph.
Mostly Sunny
and Breezy

 Tonight

Tonight: Mostly cloudy, with a low around 31. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.
Mostly Cloudy

 Tuesday

Tuesday: Mostly cloudy, with a high near 58. Southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Mostly Cloudy

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 43. South wind 13 to 17 mph, with gusts as high as 28 mph.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 61. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 31 mph.
Mostly Sunny
and Breezy

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 45. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 39 mph.
Mostly Cloudy
and Breezy

 Christmas
Day
Christmas Day: Mostly sunny, with a high near 57. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 31 mph.
Partly Sunny
and Breezy
then Mostly
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 36. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 30 mph.
Mostly Clear
then Partly
Cloudy and
Breezy
 Friday

Friday: Mostly sunny, with a high near 55. Breezy.
Mostly Sunny
and Breezy
Hi 59 °F Lo 31 °F Hi 58 °F Lo 43 °F Hi 61 °F Lo 45 °F Hi 57 °F Lo 36 °F Hi 55 °F

Air Quality Alert
 

Today
 
 Mostly sunny, with a high near 59. Breezy, with a southwest wind 24 to 29 mph becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 43 mph.
Tonight
 
 Mostly cloudy, with a low around 31. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.
Tuesday
 
 Mostly cloudy, with a high near 58. Southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 43. South wind 13 to 17 mph, with gusts as high as 28 mph.
Wednesday
 
 Mostly sunny, with a high near 61. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 31 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 45. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 39 mph.
Christmas Day
 
 Mostly sunny, with a high near 57. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 31 mph.
Thursday Night
 
 Partly cloudy, with a low around 36. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 30 mph.
Friday
 
 Mostly sunny, with a high near 55. Breezy.
Friday Night
 
 Mostly cloudy, with a low around 25.
Saturday
 
 Partly sunny, with a high near 41.
Saturday Night
 
 Mostly cloudy, with a low around 22.
Sunday
 
 Sunny, with a high near 45.

 

Forecast from NOAA-NWS for Gillette WY.