Weather Forecast for
Mattoon, IL

Overnight: Mostly clear, with a low around 70. Calm wind becoming south around 5 mph.

Sunday: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers after 5pm. Mostly sunny, with a high near 89. South wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Sunday Night: A 30 percent chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 73. South wind 10 to 14 mph, with gusts as high as 23 mph.

Monday: Mostly sunny, with a high near 91. Heat index values as high as 103. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

Monday Night: Partly cloudy, with a low around 74. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.

Tuesday: Mostly sunny, with a high near 90. Southwest wind around 10 mph, with gusts as high as 16 mph.

Tuesday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph, with gusts as high as 17 mph.

Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

Thursday: A 50 percent chance of showers. Partly sunny, with a high near 83.

Thursday Night: Showers likely. Mostly cloudy, with a low around 65.

Friday: A chance of showers. Partly sunny, with a high near 80.

Friday Night: A chance of showers. Mostly cloudy, with a low around 64.

Saturday: A chance of showers. Partly sunny, with a high near 80.

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