| NWS Forecast for: Washington County Issued by: National Weather Service Saint Louis, MO Last Update: 153 PM CDT Wed Apr 1 2026 |  |
This Afternoon: Showers likely with a chance of thunderstorms. Much cooler with highs in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. Tonight: Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Near steady temperature in the mid 60s. Southeast winds 5 to 10 mph, becoming south 10 to 15 mph with gusts up to 30 mph after midnight. Chance of rain 70 percent. Thursday: Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 50 percent. Thursday Night: Partly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. South winds 15 to 20 mph, diminishing to 5 to 10 mph after midnight. Chance of rain 60 percent. Friday: Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. Friday Night: A chance of thunderstorms. Showers, cooler with lows in the lower 50s. Chance of rain 90 percent. Saturday: Showers likely with a chance of thunderstorms in the morning, then partly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Much cooler with highs in the lower 60s. Chance of rain 70 percent. Saturday Night: Partly cloudy in the evening, then clearing. Much cooler with lows in the upper 30s. Sunday: Sunny. Highs in the lower 60s. Sunday Night: Clear. Lows in the upper 30s. Monday: Sunny. Highs in the upper 60s. Monday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows around 40. Chance of rain 20 percent. Tuesday: Partly sunny. Highs in the lower 60s. | |
| Zone Forecast: Washington County | |
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