Weather Forecast for
Mason County, IL


Overnight: A 20 percent chance of showers and thunderstorms before 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 76. Light south wind.

Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 94. Heat index values as high as 114. South southwest wind 5 to 10 mph, with gusts as high as 18 mph.

Monday Night: Increasing clouds, with a low around 75. Southwest wind 6 to 8 mph becoming north northwest after midnight. Winds could gust as high as 16 mph.

Tuesday: Mostly sunny, with a high near 87. North wind around 9 mph, with gusts as high as 16 mph.

Tuesday Night: Mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.

Wednesday: Sunny, with a high near 85. Calm wind becoming north northeast around 6 mph in the afternoon.

Wednesday Night: Clear, with a low around 63. Light east wind.

Thursday: Sunny, with a high near 87.

Thursday Night: Mostly cloudy, with a low around 67.

Friday: A 50 percent chance of showers. Partly sunny, with a high near 82.

Friday Night: A chance of showers. Mostly cloudy, with a low around 66.

Saturday: A chance of showers. Mostly sunny, with a high near 84.

Saturday Night: Mostly clear, with a low around 65.

Sunday: Sunny, with a high near 85.

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