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: 509 AM CDT Sat Jun 14 2025




Today: Patchy fog this morning. Cloudy with isolated showers and thunderstorms this morning, then partly sunny with scattered showers and thunderstorms this afternoon. Highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 40 percent.

Tonight: Partly cloudy. Isolated showers in the evening. Patchy fog after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Sunday: Patchy fog in the morning. Mostly sunny. Highs in the mid 80s. Northeast winds around 5 mph.

Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the upper 60s. East winds around 5 mph. Chance of rain 20 percent.

Monday: Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 40 percent.

Monday Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent.

Tuesday: Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.

Tuesday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent.

Wednesday: Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent. Heat index values up to 100.

Wednesday Night: Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 50 percent.

Juneteenth: Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.

Thursday Night And Friday: Mostly clear. Lows in the upper 60s. Highs in the upper 80s.







Zone Forecast: St. Clair County

Visit your local NWS office at: https://www.weather.gov/lsx/