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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fog/Mist

46°F

8°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 29.84 in
Dewpoint 46°F (8°C)
Visibility 1.25 mi
Wind Chill44°F (7°C)
Last update 16 Oct 4:15 am MDT
Extended Forecast for

5 Miles S Lead SD

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 46. Light west wind.

    Low: 46 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then a chance of showers after noon. Areas of fog before 1pm. Otherwise, cloudy, with a high near 47. Light northwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    High: 47 °F

    Showers
    Likely and
    Areas Fog

  • Thursday Night

    Thursday Night: A chance of rain showers, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. West wind 9 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. West wind 8 to 14 mph, with gusts as high as 31 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain showers after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 27. West wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A 40 percent chance of snow showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 7 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. Northwest wind 6 to 8 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 46. Light west wind.
Thursday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then a chance of showers after noon. Areas of fog before 1pm. Otherwise, cloudy, with a high near 47. Light northwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Thursday Night
A chance of rain showers, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. West wind 9 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 50. West wind 8 to 14 mph, with gusts as high as 31 mph.
Friday Night
A chance of rain showers after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 27. West wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday
A 40 percent chance of snow showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 7 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly clear, with a low around 27. Northwest wind 6 to 8 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 57. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 34.
Monday
A chance of rain showers before 3pm, then a chance of rain and snow showers. Partly sunny, with a high near 45.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Lead SD
 44.29°N 103.77°W (Elev. 6030 ft)
Last Update:
3:21 am MDT Oct 16, 2025
Forecast Valid:
4am MDT Oct 16, 2025-6pm MDT Oct 22, 2025
 
Forecast Discussion
 
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Additional Resources

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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