| NWS Forecast for: Mercer County Issued by: National Weather Service Wilmington, OH Last Update: 456 PM EDT Mon Apr 20 2026 |  |
| Tonight: Clear. Lows in the upper 30s. Light and variable winds, becoming southeast 5 to 10 mph with gusts up to 20 mph this late evening and overnight. Tuesday: Partly cloudy. Warmer with highs in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph, becoming southwest around 20 mph with gusts up to 35 mph in the afternoon. Tuesday Night: Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Warmer with lows in the upper 50s. Southwest winds 15 to 20 mph with gusts up to 35 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of rain 60 percent. Wednesday: Partly cloudy. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. West winds 5 to 10 mph. Chance of rain 60 percent. Wednesday Night: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 50s. Southwest winds around 5 mph. Chance of rain 30 percent. Thursday: Mostly sunny in the morning, then becoming partly cloudy. Unseasonably warm with highs around 80. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Unseasonably warm with lows around 60. Friday: Partly cloudy. A chance of showers in the afternoon. Unseasonably warm with highs around 80. Chance of rain 50 percent. Friday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. Chance of rain 50 percent. Saturday: Partly cloudy with a chance of showers. Highs in the lower 70s. Chance of rain 40 percent. Saturday Night: Partly cloudy. A chance of showers in the evening. Lows around 50. Chance of rain 40 percent. Sunday: Partly cloudy. Highs around 70. Sunday Night: Partly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent. Monday: Mostly cloudy. A chance of showers. Highs around 70. Chance of rain 40 percent. | |
| Zone Forecast: Mercer County | |
Visit your local NWS office at: https://www.weather.gov/iln/ |