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

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

Lat: 44.08°NLon: 91.7°WElev: 656ft.

Fair

63°F

17°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 8 Aug 2:55 am CDT
Extended Forecast for

Saint Charles MN

  • Overnight

    Overnight: Mostly clear, with a low around 57. Northwest wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. West wind 3 to 6 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 64. South wind 5 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 80. South wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers before 7pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 30%.

    Low: 65 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. East wind around 5 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80. East wind around 5 mph.

    High: 80 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Light southeast wind.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 80. West wind 3 to 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 64. South wind 5 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 80. South wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers before 7pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. East wind around 5 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind 3 to 5 mph. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80. East wind around 5 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Light southeast wind.
Wednesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 79. South wind around 6 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61. Northwest wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 75. Northeast wind 5 to 7 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57. Northeast wind around 5 mph becoming light and variable after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 73. Southeast wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MN
 43.97°N 92.07°W
Last Update:
1:26 am CDT Aug 8, 2026
Forecast Valid:
3am CDT Aug 8, 2026-6pm CDT Aug 14, 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