NWS Forecast for: St. Charles County
Issued by: National Weather Service Saint Louis, MO
Last Update: 706 PM CDT Fri Jun 18 2021
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Tonight: Partly cloudy. A 20 percent chance of showers and thunderstorms after midnight. Low in the lower 70s to lower 80s. Highest heat index readings of around 100 early in the evening. Southwest wind around 10 mph.

Saturday: Hot and humid. Partly cloudy. A 40 percent chance of showers and thunderstorms in the afternoon. High in the mid 90s. Temperature falling through the 90s in the afternoon. Southwest wind around 10 mph.

Saturday Night: Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Low in the lower to mid 70s. Light wind.

Sunday: Hot and humid. Partly cloudy. High in the mid 90s. Highest heat index readings of around 100 in the afternoon. South wind 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Sunday Night: Partly cloudy with a 40 percent chance of showers and thunderstorms. Low in the upper 60s to mid 70s. Southwest wind 10 to 15 mph. Gusts up to 25 mph after midnight.

Monday: Mostly cloudy with showers likely and chance of thunderstorms. High around 80. Temperature falling into the 70s in the afternoon. Chance of rain 60 percent.

Monday Night: Cooler. Partly cloudy with a 20 percent chance of showers in the evening, then clear after midnight. Low in the mid 50s.

Tuesday: Sunny. High in the upper 70s.

Tuesday Night And Wednesday: Mostly clear. Low in the upper 50s. High in the mid 80s.

Wednesday Night And Thursday: Partly cloudy. A 30 percent chance of showers and thunderstorms. Low in the mid 60s. High in the mid 80s.

Thursday Night And Friday: Partly cloudy with a 40 percent chance of showers and thunderstorms. Low around 70. High around 90.







Zone Forecast: St. Charles County

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