Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Partly Cloudy

55°F

13°C

Humidity 59%
Wind Speed NW 14 mph
Barometer 29.68 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 16 Apr 11:55 am MDT
Extended Forecast for

3 Miles WSW Lead SD

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly sunny early, then becoming cloudy, with a high near 61. West wind 8 to 10 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%.

    High: 61 °F

    Showers
    Likely

  • Tonight

    Tonight: Rain showers before 8pm, then snow showers.  Low around 20. Wind chill values as low as 10. North wind 9 to 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of snow showers, mainly before noon.  Mostly cloudy, with a high near 32. Wind chill values as low as 8. Northwest wind 11 to 14 mph, with gusts as high as 34 mph.

    High: 32 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 19. Wind chill values as low as 8. West wind 9 to 14 mph, with gusts as high as 34 mph.

    Low: 19 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow showers.  Mostly sunny, with a high near 41. Northwest wind 11 to 14 mph, with gusts as high as 33 mph.  New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 30 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. Light and variable wind becoming northwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. East wind around 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny early, then becoming cloudy, with a high near 61. West wind 8 to 10 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Tonight
Rain showers before 8pm, then snow showers. Low around 20. Wind chill values as low as 10. North wind 9 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday
A 30 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 32. Wind chill values as low as 8. Northwest wind 11 to 14 mph, with gusts as high as 34 mph.
Friday Night
Partly cloudy, with a low around 19. Wind chill values as low as 8. West wind 9 to 14 mph, with gusts as high as 34 mph.
Saturday
A 40 percent chance of snow showers. Mostly sunny, with a high near 41. Northwest wind 11 to 14 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly clear, with a low around 27. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 30 mph.
Sunday
Sunny, with a high near 58. Light and variable wind becoming northwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 36. East wind around 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A chance of showers. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lead SD
 44.33°N 103.8°W (Elev. 5627 ft)
11:51 am MDT Apr 16, 2026
12pm MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
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Additional Resources

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