7-Day Zone Forecast for Union County (Text-Only)
NWS Forecast for: Union County
Issued by: National Weather Service Wilmington, OH
Last Update: 442 PM EDT Tue May 19 2026




Tonight: Showers with thunderstorms likely this evening, then showers likely with a chance of thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and large hail this evening. Lows in the upper 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight, then becoming northwest late. Chance of rain 90 percent.

Wednesday: Showers with a slight chance of thunderstorms. Much cooler with highs in the mid 60s. North winds 10 to 15 mph. Chance of rain 80 percent.

Wednesday Night: Mostly cloudy. A chance of showers in the evening. Cooler with lows in the mid 40s. Northeast winds 10 to 15 mph. Chance of rain 30 percent.

Thursday: Partly cloudy. Highs in the upper 60s. Northeast winds around 10 mph with gusts up to 20 mph.

Thursday Night: Partly cloudy. A slight chance of showers after midnight. Lows around 50. Northeast winds 10 to 15 mph. Chance of rain 20 percent.

Friday: Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 90 percent.

Friday Night: Showers with a chance of thunderstorms. Lows in the upper 50s. Chance of rain 100 percent.

Saturday: Showers with a chance of thunderstorms. Highs in the upper 70s. Chance of rain 80 percent.

Saturday Night: Partly cloudy with showers likely with a chance of thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows around 60. Chance of rain 60 percent.

Sunday: Mostly cloudy with a chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.

Sunday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows around 60. Chance of rain 50 percent.

Memorial Day: Mostly cloudy with a 40 percent chance of showers. Highs around 80.

Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the lower 60s. Chance of rain 40 percent.

Tuesday: Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent.







Zone Forecast: Union County

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