| NWS Forecast for: Jefferson County Issued by: National Weather Service Saint Louis, MO Last Update: 554 PM CDT Fri Jun 13 2025 | |
Tonight: Mostly cloudy. Showers likely with a chance of thunderstorms this evening, then a slight chance of showers after midnight. Patchy fog after midnight. Lows in the upper 60s. Southeast winds around 5 mph, becoming west after midnight. Chance of rain 70 percent. Saturday: Patchy fog in the morning. Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then mostly sunny with scattered showers and thunderstorms in the afternoon. Highs in the lower 80s. Northwest winds around 5 mph. Chance of rain 40 percent. Saturday Night: Partly cloudy. Isolated showers and thunderstorms in the evening. Lows in the upper 60s. Northwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Sunday: Mostly sunny. Highs in the upper 80s. Light and variable winds, becoming northeast around 5 mph in the afternoon. Sunday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the upper 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Monday: Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent. Monday Night: Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent. Tuesday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. Tuesday Night: Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. Wednesday: Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 100. Wednesday Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 50 percent. Juneteenth: Partly sunny in the morning, then clearing. 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 80s. Chance of rain 30 percent. Thursday Night: Mostly clear. Lows in the upper 60s. Friday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. | |
| Zone Forecast: Jefferson County | |
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