Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

BRITTON (KBTN)

Lat: 45.82°NLon: 97.74°WElev: 1318ft.

Light Rain

68°F

20°C

Humidity 100%
Wind Speed E 7 G 26 mph
Barometer 29.90 in
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 17 Aug 1:15 pm CDT
Extended Forecast for

Pierpont SD

Flood Warning until August 17, 03:30pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning until August 17, 03:30pm

    NOW until 3:30pm Sun

    Flood Warning

  • This Afternoon

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 66. South southeast wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms
    Likely then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 7 to 9 mph.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. East northeast wind 5 to 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. East northeast wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. East northeast wind around 6 mph becoming south southeast after midnight.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. South southeast wind 5 to 9 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Southeast wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southeast wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. South southeast wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 61. East northeast wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 81. East northeast wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 62. East northeast wind around 6 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 83. South southeast wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 64. Southeast wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 85. South wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 40%.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 73.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Pierpont SD
 45.5°N 97.83°W (Elev. 1480 ft)
12:46 pm CDT Aug 17, 2025
1pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
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Additional Resources

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