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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

41°F

5°C

Humidity 53%
Wind Speed W 20 G 31 mph
Barometer 30.64 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 15 Oct 8:35 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 39 mph.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 50. Wind chill values as low as 17 early. West wind around 5 mph becoming calm in the morning.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 22 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Northwest wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 18 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 39 mph.
Friday
Sunny, with a high near 50. Wind chill values as low as 17 early. West wind around 5 mph becoming calm in the morning.
Friday Night
Mostly clear, with a low around 41. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 72. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 46. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 22 mph.
Sunday
Sunny, with a high near 56. Northwest wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
A slight chance of rain. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
6:31 pm MDT Oct 15, 2026
Forecast Valid:
8pm MDT Oct 15, 2026-6pm MDT Oct 22, 2026
 
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