National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Excessive Rainfall; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall Wednesday may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Saturday. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (KMML)

Lat: 44.45°NLon: 95.82°WElev: 1181ft.

Overcast

70°F

21°C

Humidity 66%
Wind Speed Calm
Barometer 30.08 in (1018.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 23 Sep 8:56 pm CDT
Extended Forecast for

Walnut Grove MN

  • Tonight

    Tonight: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Southwest wind around 5 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55. West southwest wind around 5 mph.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. South southwest wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 56. South wind 5 to 10 mph becoming west northwest after midnight.

    Low: 56 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 76. North wind around 10 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 52. North northeast wind around 5 mph becoming south after midnight.

    Low: 52 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Calm wind.
Wednesday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Southwest wind around 5 mph.
Thursday Night
Clear, with a low around 55. West southwest wind around 5 mph.
Friday
Sunny, with a high near 85. South southwest wind 5 to 10 mph.
Friday Night
Clear, with a low around 56. South wind 5 to 10 mph becoming west northwest after midnight.
Saturday
Sunny, with a high near 76. North wind around 10 mph.
Saturday Night
Clear, with a low around 52. North northeast wind around 5 mph becoming south after midnight.
Sunday
Sunny, with a high near 82. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 60. South wind around 10 mph.
Monday
Mostly sunny, with a high near 83. South wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 62. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 82. South wind 10 to 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Grove MN
 44.23°N 95.48°W (Elev. 1201 ft)
Last Update:
8:49 pm CDT Sep 23, 2025
Forecast Valid:
9pm CDT Sep 23, 2025-6pm CDT Sep 30, 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