Weather Forecast for
Griggsville, IL

Tonight: Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.

Sunday: A slight chance of showers and thunderstorms between noon and 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 101. South wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Sunday Night: Partly cloudy, with a low around 75. South wind 9 to 11 mph, with gusts as high as 20 mph.

Monday: Mostly sunny, with a high near 92. Heat index values as high as 103. South wind 8 to 10 mph.

Monday Night: Partly cloudy, with a low around 76. South wind 6 to 9 mph.

Tuesday: Mostly sunny, with a high near 92.

Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74.

Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Thursday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

Saturday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.

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