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

STURGIS (K49B)

Lat: 44.42°NLon: 103.38°WElev: 3243ft.

A Few Clouds

68°F

20°C

Humidity 88%
Wind Speed NE 3 mph
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 Aug 6:35 am MDT
Extended Forecast for

17 Miles SW Union Center SD

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Some of the storms could be severe. Partly sunny, with a high near 88. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 88 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 66. Northeast wind 5 to 15 mph becoming southeast in the evening. Winds could gust as high as 20 mph.

    Low: 66 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. East wind 5 to 10 mph becoming north in the morning. Winds could gust as high as 20 mph.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 64. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. East wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 63. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Some of the storms could be severe. Partly sunny, with a high near 88. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 66. Northeast wind 5 to 15 mph becoming southeast in the evening. Winds could gust as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. East wind 5 to 10 mph becoming north in the morning. Winds could gust as high as 20 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 64. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. East wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 63. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 65. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 94.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SW Union Center SD
 44.39°N 102.9°W (Elev. 2707 ft)
Last Update:
6:49 am MDT Aug 16, 2025
Forecast Valid:
6am MDT Aug 16, 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation