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

Mobridge, Mobridge Municipal Airport (KMBG)

Lat: 45.55°NLon: 100.41°WElev: 1713ft.

Fair

73°F

23°C

Humidity 74%
Wind Speed E 6 mph
Barometer 29.94 in (1012.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 Aug 9:52 am CDT
Extended Forecast for

Herreid SD

  • Today

    Today: Mostly sunny, with a high near 83. East wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 3am. Increasing clouds, with a low around 67. East wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 80. East wind 11 to 13 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Northeast wind 6 to 11 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Northeast wind 6 to 9 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. East southeast wind 6 to 9 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. East southeast wind 6 to 9 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. East southeast wind 8 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. South southeast wind 8 to 15 mph.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 83. East wind 9 to 18 mph, with gusts as high as 26 mph.
Tonight
Showers and thunderstorms likely, mainly after 3am. Increasing clouds, with a low around 67. East wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 80. East wind 11 to 13 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 61. Northeast wind 6 to 11 mph.
Monday
Mostly sunny, with a high near 84. Northeast wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 60. East southeast wind 6 to 9 mph.
Tuesday
Sunny, with a high near 85. East southeast wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 62. East southeast wind 8 to 10 mph.
Wednesday
Sunny, with a high near 88. South southeast wind 8 to 15 mph.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
A slight chance of showers. Sunny, with a high near 89. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Herreid SD
 45.83°N 100.06°W (Elev. 1696 ft)
Last Update:
9:45 am CDT Aug 16, 2025
Forecast Valid:
10am CDT Aug 16, 2025-6pm CDT 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