| NWS Forecast for: Mason County Issued by: National Weather Service Wilmington, OH Last Update: 405 PM EDT Thu Sep 17 2026 |  |
Tonight: Mostly clear this evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Unseasonably warm with lows in the lower 70s. West winds around 5 mph, becoming north late. Chance of rain 20 percent. Friday: Partly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. North winds 5 to 10 mph. Chance of rain 50 percent. Friday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Muggy. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. Saturday: Partly cloudy. Humid with highs in the mid 80s. East winds around 5 mph, becoming south around 5 mph in the afternoon. Saturday Night: Partly cloudy with a chance of showers with a slight chance of thunderstorms. Muggy and unseasonably warm. Lows in the upper 60s. South winds around 5 mph. Chance of rain 40 percent. Sunday: Partly cloudy. A chance of showers. Highs in the upper 80s. Chance of rain 40 percent. Sunday Night: Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent. Monday: Partly cloudy. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 30 percent. Monday Night: Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. Tuesday: Partly cloudy. A chance of showers. Highs in the upper 70s. Chance of rain 50 percent. Tuesday Night: Partly cloudy. A chance of showers. Lows in the lower 60s. Chance of rain 50 percent. Wednesday: Partly cloudy. A chance of showers in the morning. Highs in the mid 70s. Chance of rain 30 percent. Wednesday Night: Partly cloudy. Lows in the upper 50s. Thursday: Partly cloudy. Highs in the mid 70s. | |
| Zone Forecast: Mason County | |
Visit your local NWS office at: https://www.weather.gov/iln/ |