Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Gillette, Gillette-Campbell County Airport (KGCC)

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

Fair and Breezy

51°F

11°C

Humidity 52%
Wind Speed SW 23 G 32 mph
Barometer 29.71 in (1003.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Apr 7:53 am MDT
Extended Forecast for

4 Miles N Sleepy Hollow WY

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm.  Mostly sunny, with a high near 62. Breezy, with a southwest wind 8 to 13 mph becoming northwest 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 62 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 32. Northwest wind 11 to 16 mph becoming light and variable  in the evening. Winds could gust as high as 22 mph.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Light and variable wind becoming northwest 5 to 7 mph in the morning.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. Southeast wind around 6 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers after noon.  Partly sunny, with a high near 62. Breezy, with a southwest wind 17 to 23 mph becoming north in the afternoon. Winds could gust as high as 33 mph.

    High: 62 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain and snow showers likely, becoming all snow after 9pm.  Mostly cloudy, with a low around 21. Blustery, with a north wind 20 to 24 mph, with gusts as high as 34 mph.

    Low: 21 °F

    Blustery.
    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Friday

    Friday: A chance of snow showers.  Mostly cloudy, with a high near 38. Breezy.

    High: 38 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 62. Breezy, with a southwest wind 8 to 13 mph becoming northwest 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
Mostly clear, with a low around 32. Northwest wind 11 to 16 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Tuesday
Mostly sunny, with a high near 61. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 34. Southeast wind around 6 mph.
Wednesday
Sunny, with a high near 68. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 44. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Thursday
A 40 percent chance of showers after noon. Partly sunny, with a high near 62. Breezy, with a southwest wind 17 to 23 mph becoming north in the afternoon. Winds could gust as high as 33 mph.
Thursday Night
Rain and snow showers likely, becoming all snow after 9pm. Mostly cloudy, with a low around 21. Blustery, with a north wind 20 to 24 mph, with gusts as high as 34 mph.
Friday
A chance of snow showers. Mostly cloudy, with a high near 38. Breezy.
Friday Night
Mostly cloudy, with a low around 19. Blustery.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sleepy Hollow WY
 44.29°N 105.42°W (Elev. 4600 ft)
7:26 am MDT Apr 13, 2026
7am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
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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