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

Hazardous Weather Conditions

Current conditions at

Winona, Winona Municipal Airport-Max Conrad Field (KONA)

Lat: 44.08°NLon: 91.7°WElev: 656ft.

Fair

77°F

25°C

Humidity 83%
Wind Speed SE 5 mph
Barometer 29.86 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Sep 10:15 pm CDT
Extended Forecast for

Saint Charles MN

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 70. South wind around 9 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Heavy Rain

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 88. West wind 5 to 8 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 68. Light northeast wind.

    Low: 68 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 85. East wind around 5 mph.

    High: 85 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. East wind 3 to 7 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Southeast wind 6 to 8 mph.

    High: 81 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 64. Southeast wind 7 to 9 mph.

    Low: 64 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 26 mph.

    Low: 66 °F

    Breezy.
    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 2am. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 70. South wind around 9 mph. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 88. West wind 5 to 8 mph.
Friday Night
Increasing clouds, with a low around 68. Light northeast wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 85. East wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 65. East wind 3 to 7 mph.
Sunday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Southeast wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 64. Southeast wind 7 to 9 mph.
Labor Day
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 26 mph.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 83. West wind 8 to 11 mph.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61. Northwest wind around 8 mph.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77. Northwest wind 8 to 11 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MN
 43.97°N 92.07°W
Last Update:
8:16 pm CDT Sep 3, 2026
Forecast Valid:
10pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026
 
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