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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Thunderstorm Rain

66°F

19°C

Humidity 94%
Wind Speed SE 6 G 14 mph
Barometer 30.05 in
Dewpoint 64°F (18°C)
Visibility 2.00 mi
Last update 15 Aug 7:55 pm MDT
Extended Forecast for

Whitewood SD

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 66. Southeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after noon. Some of the storms could be severe. Mostly cloudy, with a high near 81. South wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Severe
    Thunderstorms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers. Partly cloudy, with a low around 63. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 84. South wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 66. Southeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after noon. Some of the storms could be severe. Mostly cloudy, with a high near 81. South wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers. Partly cloudy, with a low around 63. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. East wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Monday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 84. South wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 63. East wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whitewood SD
 44.45°N 103.63°W (Elev. 3714 ft)
Last Update:
4:50 pm MDT Aug 15, 2025
Forecast Valid:
8pm MDT Aug 15, 2025-6pm MDT Aug 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