National Weather Service Forecast for: Gillette WY
Issued by: National Weather Service Rapid City, SD
Updated: 10:41 am MDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 80. North wind around 10 mph, with gusts as high as 24 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 46. North wind 5 to 8 mph becoming calm. Winds could gust as high as 21 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 77. South wind 5 to 8 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 46. Northeast wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 21 mph.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 76. South wind around 6 mph becoming north in the afternoon. Winds could gust as high as 17 mph.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 48. North wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 83.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 54.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 77.
Sunny
Hi 80 °F Lo 46 °F Hi 77 °F Lo 46 °F Hi 76 °F Lo 48 °F Hi 83 °F Lo 54 °F Hi 77 °F

 

This Afternoon
 
 Sunny, with a high near 80. North wind around 10 mph, with gusts as high as 24 mph.
Tonight
 
 Mostly clear, with a low around 46. North wind 5 to 8 mph becoming calm. Winds could gust as high as 21 mph.
Wednesday
 
 Sunny, with a high near 77. South wind 5 to 8 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
 
 Mostly clear, with a low around 46. Northeast wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 21 mph.
Thursday
 
 Sunny, with a high near 76. South wind around 6 mph becoming north in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
 
 Mostly clear, with a low around 48. North wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph.
Friday
 
 Sunny, with a high near 83.
Friday Night
 
 Mostly clear, with a low around 54.
Saturday
 
 Sunny, with a high near 77.
Saturday Night
 
 A chance of rain, mainly after midnight. Mostly cloudy, with a low around 41. Breezy.
Sunday
 
 A chance of rain. Partly sunny, with a high near 51.
Sunday Night
 
 Rain and snow likely. Mostly cloudy, with a low around 35.
Columbus Day
 
 A chance of rain and snow. Partly sunny, with a high near 54.

 

Forecast from NOAA-NWS for Gillette WY.