Weather Forecast for
Mason County, IL


Overnight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 76. Light south wind.

Monday: A 20 percent chance of showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 95. Heat index values as high as 117. South southwest wind 5 to 10 mph, with gusts as high as 18 mph.

Monday Night: Partly cloudy, with a low around 74. 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 8 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 86. Calm wind becoming northeast around 5 mph in the afternoon.

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

Thursday: Sunny, with a high near 87.

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

Friday: A 50 percent chance of showers. Partly sunny, with a high near 81.

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: Partly cloudy, with a low around 64.

Sunday: Sunny, with a high near 84.

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