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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Gillette, Gillette-Campbell County Airport (KGCC)

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

Light Rain and Breezy

67°F

19°C

Humidity 22%
Wind Speed NW 24 G 40 mph
Barometer 29.85 in (1007.4 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Jun 3:53 pm MDT
Extended Forecast for

Gillette WY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Breezy, with a north wind 16 to 21 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 33 mph.

    Low: 46 °F

    Slight Chance
    T-storms and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. West wind 5 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 46. North wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 78. North wind 5 to 9 mph becoming east in the afternoon. Winds could gust as high as 17 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 53. East wind 9 to 17 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 83. Southeast wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 83 °F

    Partly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73.

    High: 73 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Breezy, with a north wind 16 to 21 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 33 mph.
Thursday
Mostly sunny, with a high near 73. West wind 5 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 46. North wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.
Juneteenth
Mostly sunny, with a high near 78. North wind 5 to 9 mph becoming east in the afternoon. Winds could gust as high as 17 mph.
Friday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 53. East wind 9 to 17 mph, with gusts as high as 25 mph.
Saturday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 83. Southeast wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Monday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 71.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Gillette WY
 44.29°N 105.51°W (Elev. 4600 ft)
Last Update:
4:08 pm MDT Jun 17, 2026
Forecast Valid:
4pm MDT Jun 17, 2026-6pm MDT Jun 24, 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