Weather Forecast for
Jefferson County, IL

Today: Scattered showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 83. West southwest wind 9 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

Tonight: Isolated showers and thunderstorms before 7pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 58. North northeast wind 8 to 10 mph. Chance of precipitation is 20%.


Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 68. Northeast wind 6 to 8 mph.

Saturday Night: Mostly cloudy, with a low around 55. East northeast wind 3 to 5 mph.

Sunday: Mostly sunny, with a high near 76. East wind 5 to 7 mph.

Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62. East wind around 5 mph.

Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. South southeast wind 5 to 8 mph.

Monday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 67. South wind around 8 mph.

Tuesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. West southwest wind around 9 mph.

Tuesday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. West wind around 8 mph becoming north after midnight.

Wednesday: Mostly sunny, with a high near 72. North wind around 7 mph.

Wednesday Night: Partly cloudy, with a low around 53. East northeast wind 3 to 5 mph.

Thursday: Sunny, with a high near 74. Light and variable wind becoming south southwest around 6 mph in the morning.