| NWS Forecast for: Jersey County Issued by: National Weather Service Saint Louis, MO Last Update: 957 AM CDT Sat Aug 15 2026 |  |
Rest Of Today: Mostly cloudy with showers and thunderstorms likely late this morning, then partly sunny this afternoon. Highs around 90. Southeast winds around 5 mph, becoming southwest this afternoon. Chance of rain 60 percent. Heat index values up to 106 this afternoon. Tonight: Partly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds around 5 mph. Chance of rain 40 percent. Heat index values up to 105 early in the evening. Sunday: Partly sunny. A chance of showers and thunderstorms in the morning. Humid with highs around 90. Northwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 104. Sunday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 20 percent. Monday: Mostly sunny. Highs in the mid 80s. North winds around 5 mph. Monday Night: Partly cloudy in the evening, then clearing. Lows in the mid 60s. Tuesday: Sunny. Highs in the upper 80s. Tuesday Night: Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 40 percent. Wednesday: Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the upper 80s. Chance of rain 40 percent. Wednesday Night: Mostly cloudy in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. Thursday: Mostly sunny. A slight chance of showers in the morning. Highs around 80. Chance of rain 20 percent. Thursday Night: A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the lower 60s. Chance of rain 20 percent. Friday: Mostly sunny. Highs around 80. | |
| Zone Forecast: Jersey County | |
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