Weather Forecast for
Lewistown, IL

Tonight: Mostly clear, with a low around 68. Calm wind.

Sunday: A 20 percent chance of showers and thunderstorms before 3pm. Partly sunny, with a high near 90. Heat index values as high as 103. Light south wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

Sunday Night: A slight chance of showers and thunderstorms between 8pm and 1am. Partly cloudy, with a low around 74. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Monday: Mostly sunny, with a high near 92. Heat index values as high as 106. South southwest wind 3 to 8 mph. Winds could gust as high as 16 mph.

Monday Night: Partly cloudy, with a low around 73. South southwest wind 3 to 5 mph. Winds could gust as high as 15 mph.

Tuesday: Partly sunny, with a high near 91. West southwest wind 5 to 7 mph, with gusts as high as 16 mph.

Tuesday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Calm wind.

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 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.

Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 64.

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

Friday Night: A chance of showers. Mostly cloudy, with a low around 63.

Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 79.

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