7-Day Zone Forecast for Mason County (Text-Only)
NWS Forecast for: Mason County
Issued by: National Weather Service Lincoln, IL
Last Update: 1037 PM CDT Tue Apr 21 2026




Rest Of Tonight: Partly cloudy. Not as cool with lows around 60. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Wednesday: Mostly sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph.

Wednesday Night: Mostly clear. Lows in the upper 50s. South winds around 5 mph.

Thursday: Mostly sunny. Highs in the lower 80s. South winds 10 to 15 mph with gusts up to 30 mph.

Thursday Night: Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent.

Friday: Showers likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 70 percent.

Friday Night Through Saturday Night: Partly cloudy. Lows in the lower 50s. Highs in the lower 70s.

Sunday: Partly sunny. Highs in the mid 70s.

Sunday Night: Mostly cloudy. A chance of showers. Lows in the mid 50s. Chance of rain 50 percent.

Monday: Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 60 percent.

Monday Night: Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows around 50. Chance of rain 40 percent.

Tuesday: Partly sunny. Highs in the upper 60s.







Zone Forecast: Mason County

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