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St. Charles, MN Weather Forecast
St. Charles, MN Weather Forecast Date: 1142 AM CDT Thu Sep 17 2026
The area/counties/county of: Winona, including the city of Winona.or toggle through each period.
This Afternoon... Mostly cloudy early, then becoming partly sunny. A chance of sprinkles early. Highs in the lower 70s. Northeast winds around 5 mph.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Light winds.
Friday... Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 60s. East winds 5 to 10 mph. Chance of rain 100%.
Friday Night... A chance of thunderstorms. Showers. Locally heavy rainfall possible in the evening. Lows in the upper 50s. East winds 10 to 20 mph. Gusts up to 30 mph in the evening. Chance of rain 100%.
Saturday... Showers likely. Highs in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 70%.
Saturday Night... Mostly cloudy with a 50% chance of showers. Lows in the mid 50s.
Sunday... Partly sunny with a 40% chance of showers. Highs in the mid 60s.
Sunday Night... Mostly cloudy with a 30% chance of showers. Lows in the lower 50s.
Monday... Mostly cloudy with a 40% chance of showers. Highs around 60.
Monday Night... Mostly cloudy. Lows in the upper 40s. Highs in the lower 60s.
Tuesday... Mostly cloudy. Lows in the upper 40s. Highs in the lower 60s.
POP = Probability of Precipitation
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