Weather WorldMason County, IL 7-Day Night Weather Forecast
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Mason County, IL Weather Forecast
Mason County, IL Weather Forecast Date: 838 PM CST Mon Mar 02 2026
The area/counties/county of: Mason, including the city of Havana.or toggle through each period.
Rest of Tonight... Cloudy. Rain showers likely. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 70%.
Tuesday... Showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Highs in the upper 40s. East winds around 5 mph. Chance of rain 90%.
Tuesday Night... A chance of thunderstorms in the evening. Showers. Lows around 40. Northeast winds around 5 mph. Chance of rain 90%.
Wednesday... Showers likely. A chance of thunderstorms in the afternoon. Highs in the upper 50s. East winds around 5 mph. Chance of rain 70%.
Wednesday Night... Showers likely with a chance of thunderstorms in the evening, then showers after midnight. Near steady temperature in the lower 50s. Southeast winds around 5 mph. Chance of rain 80%.
Thursday... Mostly cloudy. Showers likely, mainly in the morning. Highs in the lower 60s. Chance of rain 70%.
Thursday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the upper 40s. Chance of rain 40%.
Friday... Showers likely. Not as cool with highs in the mid 70s. Chance of rain 70%.
Friday Night... A chance of thunderstorms. Showers. Lows in the mid 50s. Chance of rain 90%.
Saturday... Cloudy. A chance of showers in the morning. Highs in the mid 60s. Chance of rain 50%.
Saturday Night... Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.
Sunday... Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.
Sunday Night... Partly cloudy in the evening, then clearing. Lows in the mid 40s.
POP = Probability of Precipitation
Mason County Radar Loop
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