Weather Forecast for
Jefferson County, IL

Tonight: Mostly clear, with a low around 47. Calm wind becoming south southwest 5 to 7 mph after midnight.

Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 73. South southwest wind 8 to 14 mph, with gusts as high as 21 mph.

Friday Night: Showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Low around 53. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%.

Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78. West wind 3 to 8 mph.

Saturday Night: Partly cloudy, with a low around 55. Calm wind.

Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 69. North wind 5 to 9 mph.

Sunday Night: Mostly clear, with a low around 46. North wind around 6 mph becoming calm in the evening.

Monday: Sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Monday Night: Mostly clear, with a low around 49. Calm wind becoming south southeast around 5 mph after midnight.

Tuesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 73. South wind 7 to 17 mph, with gusts as high as 23 mph.

Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 54. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 21 mph.

Wednesday: Sunny, with a high near 75. Northwest wind 9 to 11 mph.

Wednesday Night: A slight chance of showers. Mostly clear, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.

Thursday: Sunny, with a high near 78. East wind 5 to 8 mph.

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