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

Mankato, Mankato Regional Airport (KMKT)

Lat: 44.22°NLon: 93.92°WElev: 1020ft.

Overcast

79°F

26°C

Humidity 85%
Wind Speed E 9 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 5:56 pm CDT
Extended Forecast for

4 Miles S Nicollet MN

Flood Watch August 17, 07:00pm until August 18, 07:00am
Click here for hazard details and duration
Flood Watch
  • 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 15 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 83. South southeast wind 5 to 10 mph becoming west in the afternoon.

    High: 83 °F

    Chance
    T-storms then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. North northwest wind 5 to 10 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. North wind 5 to 10 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. North wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. East wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

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 15 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 83. South southeast wind 5 to 10 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 65. North northwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 81. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 60. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 82. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 63. South wind around 5 mph.
Friday
Mostly sunny, with a high near 81. South southwest wind 5 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 57. West northwest wind around 5 mph.
Saturday
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 52. North northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 72. Northwest wind 5 to 10 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Nicollet MN
 44.21°N 94.16°W (Elev. 951 ft)
5:28 pm CDT Aug 17, 2025
6pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
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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