| NWS Forecast for: Mason County Issued by: National Weather Service Lincoln, IL Last Update: 1036 PM CDT Wed Aug 27 2025 | |
| Overnight: Mostly clear. Lows in the mid 50s. South winds around 5 mph. Thursday: Sunny. Highs in the mid 80s. Southwest winds around 5 mph. Thursday Night: Mostly clear. Lows in the upper 50s. Northeast winds around 5 mph. Friday: Mostly sunny. Highs around 80. East winds around 5 mph. Friday Night: Partly cloudy. Lows in the lower 50s. East winds around 5 mph. Saturday: Mostly sunny. Highs in the upper 70s. Saturday Night: Mostly cloudy. Lows in the mid 50s. Sunday Through Monday Night: Partly cloudy. Highs around 80. Lows in the mid 50s. Tuesday And Tuesday Night: Mostly clear. Highs in the lower 80s. Lows in the upper 50s. Wednesday: Mostly sunny. Highs in the mid 80s. | |
| Zone Forecast: Mason County | |
Visit your local NWS office at: https://www.weather.gov/ilx |