| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 1018 PM CST Sun Feb 15 2026 | |
Overnight: Partly cloudy. Patchy dense fog. Lows in the upper 30s. Light and variable winds, becoming southwest around 5 mph. Washingtons Birthday: Patchy dense fog in the morning. Mostly sunny. Highs in the mid 60s. South winds 5 to 10 mph. Monday Night: Partly cloudy. Lows in the lower 40s. South winds 5 to 10 mph. Tuesday: Mostly cloudy. Highs in the mid 60s. South winds 15 to 20 mph. Tuesday Night: Mostly cloudy. A slight chance of showers after midnight. Not as cool. Near steady temperature in the upper 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. Wednesday And Wednesday Night: Mostly clear. Highs in the lower 70s. Lows in the upper 40s. Thursday: Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. Thursday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows around 40. Chance of rain 20 percent. Friday: Mostly sunny. A slight chance of rain in the afternoon. Much cooler with highs in the lower 50s. Chance of rain 20 percent. Friday Night: Mostly cloudy. A chance of rain, mainly in the evening. Lows in the lower 30s. Chance of rain 30 percent. Saturday: Partly sunny with a 20 percent chance of rain. Highs in the upper 40s. Saturday Night: Partly cloudy with a slight chance of rain. A slight chance of snow after midnight. Lows in the upper 20s. Chance of precipitation 20 percent. Sunday: Mostly sunny. Highs in the mid 40s. | |
| Zone Forecast: St. Clair County | |
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