7-Day Zone Forecast for St. Clair County (Text-Only)
NWS Forecast for: St. Clair County
Issued by: National Weather Service Saint Louis, MO
Last Update: 127 AM CDT Thu Apr 16 2026




Rest Of Tonight: Showers and scattered thunderstorms. Near steady temperature in the lower 60s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

Thursday: Partly sunny in the morning, then clearing. Highs in the lower 80s. Southwest winds 5 to 10 mph.

Thursday Night: Mostly clear. Lows around 60. South winds around 5 mph.

Friday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

Friday Night: A chance of thunderstorms. Showers, cooler with lows around 50. South winds 10 to 15 mph, becoming southwest after midnight. Chance of rain 90 percent.

Saturday: Mostly sunny with a 50 percent chance of showers. Much cooler with highs in the lower 60s.

Saturday Night: Mostly clear. A slight chance of showers in the evening. Cooler with lows in the upper 30s. Chance of rain 20 percent.

Sunday And Sunday Night: Clear. Highs in the mid 60s. Lows in the lower 40s.

Monday And Monday Night: Mostly clear. Highs in the lower 70s. Lows in the lower 50s.

Tuesday: Mostly sunny. Highs in the mid 70s.

Tuesday Night: Partly cloudy in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent.

Wednesday: Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.







Zone Forecast: St. Clair County

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