7-Day Zone Forecast for St. Charles County (Text-Only)
NWS Forecast for: St. Charles County
Issued by: National Weather Service Saint Louis, MO
Last Update: 839 AM CDT Sun Jul 13 2025




Rest Of Today: Mostly cloudy. A chance of showers and thunderstorms early this morning, then showers and thunderstorms likely this afternoon. Highs in the mid 80s. Temperature falling to around 80 this afternoon. Southeast winds around 5 mph. Chance of rain 70 percent.

Tonight: Mostly cloudy. A chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows around 70. East winds around 5 mph. Chance of rain 50 percent.

Monday: Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Northeast winds around 5 mph. Chance of rain 20 percent.

Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.

Tuesday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs around 90. South winds around 5 mph. Chance of rain 50 percent.

Tuesday Night: Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.

Wednesday And Wednesday Night: Partly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 100.

Thursday And Thursday Night: Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 80s. Lows in the lower 70s. Chance of rain 40 percent.

Friday: Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.

Friday Night And Saturday: Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 20 percent.







Zone Forecast: St. Charles County

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