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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 >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

72°F

22°C

Humidity 94%
Wind Speed E 6 mph
Barometer 29.92 in (1011.7 mb)
Dewpoint 70°F (21°C)
Visibility NA
Last update 17 Aug 3:56 pm CDT
Extended Forecast for

2 Miles SSE Wilmot SD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 71. South wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am. Steady temperature around 70. East southeast wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. North northwest wind 6 to 9 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind 3 to 7 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80. North northeast wind 3 to 6 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South southeast wind around 8 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. South wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 71. South wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms, mainly before 3am. Steady temperature around 70. East southeast wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 78. North northwest wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 62. North wind 3 to 7 mph.
Tuesday
Sunny, with a high near 80. North northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 80. Calm wind becoming southeast 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 62. South southeast wind around 8 mph.
Thursday
Sunny, with a high near 83. South wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
Friday
A slight chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Wilmot SD
 45.38°N 96.85°W (Elev. 1184 ft)
Last Update:
4:46 pm CDT Aug 17, 2025
Forecast Valid:
4pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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