| NWS Forecast for: Union County Issued by: National Weather Service Jacksonville, FL Last Update: 847 PM EDT Sun Jul 26 2026 | |
| Tonight: Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. West winds 5 to 10 mph. Chance of rain 20 percent. Monday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. Monday Night: Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 40 percent. Heat index values up to 106 early in the evening. Tuesday: Mostly sunny. Highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 111. Tuesday Night: Partly cloudy. Lows around 80. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 107 early in the evening. Wednesday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 50 percent. Heat index values up to 110. Wednesday Night: Showers likely with a chance of thunderstorms. Lows in the upper 70s. Chance of rain 60 percent. Heat index values up to 105 early in the evening. Thursday And Thursday Night: Showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 80 percent. Heat index values up to 105. Friday: Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 50 percent. Heat index values up to 105. Friday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent. Saturday Through Sunday: Showers and thunderstorms likely. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 70 percent. | |
| Zone Forecast: Union County | |
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