| NWS Forecast for: Union County Issued by: National Weather Service Greenville-Spartanburg, SC Last Update: 613 PM EDT Fri Jun 12 2026 |  |
| Tonight: Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the mid 70s. West winds 5 to 10 mph. Chance of rain 20 percent. Saturday: Mostly sunny. Hot with highs in the mid 90s. North winds around 5 mph. Heat index values up to 102. Saturday Night: Partly cloudy. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Sunday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 10 to 15 mph. Chance of rain 30 percent. Heat index values up to 104. Sunday Night: A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming west around 5 mph after midnight. Chance of rain 40 percent. Monday: Partly sunny. Highs in the upper 80s. Monday Night: A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent. Tuesday: Mostly cloudy with a chance of showers. Highs in the lower 80s. Chance of rain 50 percent. Tuesday Night: Mostly cloudy. Lows in the mid 60s. Wednesday: Partly sunny. Highs in the mid 80s. Wednesday Night: Partly cloudy. Lows in the upper 60s. Thursday: Partly sunny in the morning, then becoming mostly sunny. Windy with highs in the lower 90s. Thursday Night: Partly cloudy and breezy. Lows in the lower 70s. Juneteenth: Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. | |
| Zone Forecast: Union County | |
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