| NWS Forecast for: Union County Issued by: National Weather Service Greenville-Spartanburg, SC Last Update: 333 AM EDT Sat Sep 12 2026 |  |
| Today: Patchy fog this morning. Partly sunny with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs in the upper 80s. South winds around 5 mph. Chance of rain 50 percent. Tonight: Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows around 70. Southwest winds around 5 mph. Chance of rain 70 percent. Sunday: Patchy fog in the morning. Mostly sunny. Humid with highs in the lower 90s. West winds around 5 mph. Sunday Night: Mostly clear. Lows around 70. West winds around 5 mph in the evening, becoming light and variable. Monday: Sunny with highs in the lower 90s. North winds 5 to 10 mph. Monday Night: Partly cloudy. Lows in the upper 60s. Tuesday: Mostly sunny. Highs in the mid 80s. Tuesday Night: Mostly clear. Lows in the lower 60s. Wednesday: Sunny. Highs in the upper 80s. Wednesday Night: Clear. Lows in the lower 60s. Thursday: Sunny. Highs in the lower 90s. Thursday Night: Clear. Lows in the mid 60s. Friday: Sunny. Highs in the lower 90s. | |
| Zone Forecast: Union County | |
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