| NWS Forecast for: Jefferson County Issued by: National Weather Service Saint Louis, MO Last Update: 127 AM CDT Wed Apr 15 2026 |  |
Rest Of Tonight: Mostly cloudy with isolated showers and thunderstorms. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Wednesday: Mostly cloudy. Isolated showers and thunderstorms in the morning, then numerous showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. Wednesday Night: Scattered thunderstorms. Showers. Lows in the lower 60s. Southwest winds 5 to 10 mph. Chance of rain 90 percent. Thursday: Partly sunny in the morning, then clearing. Scattered showers. Isolated thunderstorms in the morning, then scattered thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Thursday Night: Mostly clear. Lows in the upper 50s. Southwest winds around 5 mph. Friday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. Friday Night: Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 70 percent. Saturday: A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs in the upper 60s. Chance of rain 50 percent. Saturday Night: Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. 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 upper 30s. Monday: Sunny. Highs in the lower 70s. Monday Night And Tuesday: Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. | |
| Zone Forecast: Jefferson County | |
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