Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Fair

50°F

10°C

Humidity 47%
Wind Speed NW 6 mph
Barometer 29.74 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 15 Apr 8:15 am MDT
Extended Forecast for

10 Miles SSE Colony WY

  • Today

    Today: Sunny, with a high near 72. West wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Showers likely after noon.  Increasing clouds, with a high near 63. Breezy, with a west wind 14 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph.  Chance of precipitation is 60%.

    High: 63 °F

    Breezy.
    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then rain and snow showers between 9pm and 10pm, then snow showers after 10pm.  Low around 25. Wind chill values as low as 14. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 25 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of snow showers.  Mostly cloudy, with a high near 40. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 34 mph.  New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20. Northwest wind 8 to 18 mph, with gusts as high as 29 mph.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow showers before 3pm, then a slight chance of rain showers between 3pm and 5pm, then a slight chance of rain and snow showers after 5pm.  Mostly sunny, with a high near 49. Breezy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.  Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Northwest wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 26 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 72. West wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Tonight
Mostly clear, with a low around 44. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Thursday
Showers likely after noon. Increasing clouds, with a high near 63. Breezy, with a west wind 14 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 60%.
Thursday Night
Rain showers before 9pm, then rain and snow showers between 9pm and 10pm, then snow showers after 10pm. Low around 25. Wind chill values as low as 14. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 40. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Friday Night
Partly cloudy, with a low around 20. Northwest wind 8 to 18 mph, with gusts as high as 29 mph.
Saturday
A slight chance of snow showers before 3pm, then a slight chance of rain showers between 3pm and 5pm, then a slight chance of rain and snow showers after 5pm. Mostly sunny, with a high near 49. Breezy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 26. Northwest wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 26 mph.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSE Colony WY
 44.75°N 104.05°W (Elev. 3199 ft)
6:32 am MDT Apr 15, 2026
8am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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Additional Resources

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