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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

68°F

20°C

Humidity 64%
Wind Speed W 12 G 17 mph
Barometer 29.99 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 8 Aug 1:55 pm MDT
Extended Forecast for

10 Miles SSW North Spearfish SD

  • This Afternoon

    This Afternoon: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm, then a slight chance of showers after 5pm. Partly sunny, with a steady temperature around 63. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 63 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 46. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68. West wind around 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 69. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 73. Southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. North wind around 5 mph becoming south after midnight.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm, then a slight chance of showers after 5pm. Partly sunny, with a steady temperature around 63. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 46. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 68. West wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Sunday
Sunny, with a high near 69. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 50. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 73. Southwest wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 51. North wind around 5 mph becoming south after midnight.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSW North Spearfish SD
 44.38°N 104.02°W (Elev. 5761 ft)
Last Update:
12:49 pm MDT Aug 8, 2025
Forecast Valid:
2pm MDT Aug 8, 2025-6pm MDT Aug 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation