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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

New Ulm Municipal Airport (KULM)

Lat: 44.32°NLon: 94.5°WElev: 1001ft.

Fair

73°F

23°C

Humidity 78%
Wind Speed E 15 G 20 mph
Barometer 30.00 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 1:22 pm CDT
Extended Forecast for

Nicollet MN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 2pm. Partly sunny, with a high near 81. Northeast wind 10 to 15 mph becoming east southeast.

    High: 81 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. East southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    T-storms
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 82 °F

    Chance
    T-storms then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. North northwest wind 5 to 10 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. North wind around 5 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. East northeast wind around 5 mph becoming south southeast after midnight.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. South wind around 5 mph.

    High: 81 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 2pm. Partly sunny, with a high near 81. Northeast wind 10 to 15 mph becoming east southeast.
Tonight
Showers and thunderstorms likely before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. East southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 64. North northwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 80. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 60. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 80. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. East northeast wind around 5 mph becoming south southeast after midnight.
Thursday
Sunny, with a high near 81. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 62. South wind around 5 mph.
Friday
Mostly sunny, with a high near 80. South southwest wind around 5 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 57. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 76. Northwest wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nicollet MN
 44.28°N 94.22°W (Elev. 981 ft)
Last Update:
12:48 pm CDT Aug 17, 2025
Forecast Valid:
1pm 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