| NWS Forecast for: Washington County Issued by: National Weather Service Saint Louis, MO Last Update: 903 AM CDT Thu May 14 2026 |  |
Today: Sunny. Highs in the lower 70s. Southeast winds around 5 mph. Tonight: Mostly clear in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Friday: Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Highs in the upper 70s. South winds 10 to 15 mph. Chance of rain 50 percent. Friday Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Not as cool with lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 30 percent. Saturday: A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 70 percent. Saturday Night: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 60s. Chance of rain 50 percent. Sunday And Sunday Night: Mostly clear. Highs in the upper 80s. Lows in the upper 60s. Monday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 80s. Chance of rain 30 percent. Monday Night: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 70s. Chance of rain 50 percent. Tuesday And Tuesday Night: Showers likely with a chance of thunderstorms. Highs in the lower 80s. Lows in the mid 60s. Chance of rain 70 percent. Wednesday: Partly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 50 percent. | |
| Zone Forecast: Washington County | |
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