| NWS Forecast for: Mason County Issued by: National Weather Service Lincoln, IL Last Update: 503 AM CDT Thu Apr 23 2026 |  |
Today: Mostly sunny. Highs in the lower 80s. South winds 15 to 20 mph with gusts up to 30 mph. Tonight: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows around 60. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. Friday: Showers likely with a chance of thunderstorms in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the lower 70s. Southwest winds around 10 mph, becoming west in the afternoon. Gusts up to 25 mph. Chance of rain 70 percent. Friday Night: Mostly clear. Cooler with lows in the upper 40s. North winds 5 to 10 mph. Saturday: Sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph. Saturday Night And Sunday: Mostly cloudy. Lows around 50. Highs in the mid 70s. Sunday Night: Mostly cloudy. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 70 percent. Monday: A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. Monday Night: Mostly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the upper 40s. Chance of rain 40 percent. Tuesday And Tuesday Night: Partly cloudy. Highs in the upper 60s. Lows in the mid 40s. Wednesday: Partly sunny. Highs in the upper 60s. | |
| Zone Forecast: Mason County | |
Visit your local NWS office at: https://www.weather.gov/ilx |