National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Gillette, Gillette-Campbell County Airport (KGCC)

Lat: 44.34°NLon: 105.54°WElev: 4364ft.

Fog/Mist

55°F

13°C

Humidity 96%
Wind Speed W 5 mph
Barometer 30.10 in (1017.0 mb)
Dewpoint 54°F (12°C)
Visibility 2.50 mi
Wind Chill54°F (12°C)
Last update 19 Sep 8:53 am MDT
Extended Forecast for

Gillette WY

  • Today

    Today: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms, mainly after 2pm. Cloudy, with a high near 69. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 47. North wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 9am. High near 59. West wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 46. North wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 64. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.

    High: 64 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Breezy, with a south wind 11 to 21 mph, with gusts as high as 34 mph.

    Low: 46 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Breezy.

    Low: 51 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of showers. Mostly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms, mainly after 2pm. Cloudy, with a high near 69. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Tonight
Showers and possibly a thunderstorm. Low around 47. North wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Sunday
Showers, with thunderstorms also possible after 9am. High near 59. West wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 46. North wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 64. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 46. Breezy, with a south wind 11 to 21 mph, with gusts as high as 34 mph.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 51. Breezy.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 80. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gillette WY
 44.29°N 105.51°W (Elev. 4600 ft)
Last Update:
9:36 am MDT Sep 19, 2026
Forecast Valid:
9am MDT Sep 19, 2026-6pm MDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation