Weather Forecast for
Mason County, IL

Overnight: Mostly clear, with a low around 52. Calm wind.

Monday: Sunny, with a high near 76. Calm wind becoming west 5 to 8 mph in the morning.

Monday Night: Mostly clear, with a low around 56. South southwest wind 5 to 8 mph, with gusts as high as 17 mph.

Tuesday: Showers and thunderstorms likely before 3pm, then a chance of showers after 4pm. Mostly sunny, with a high near 77. South southwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night: Mostly clear, with a low around 54. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

Wednesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 81. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Wednesday Night: Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am. Low around 64. Breezy, with a west southwest wind 11 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

Thursday: Mostly sunny, with a high near 75.

Thursday Night: Mostly clear, with a low around 55.

Juneteenth: Sunny, with a high near 78.

Friday Night: Mostly clear, with a low around 57.

Saturday: Mostly sunny, with a high near 81.

Saturday Night: A chance of showers. Mostly cloudy, with a low around 62.

Sunday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80.

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