Weather forecast for: Gerlaw IL
Last Update: 5:31 am CDT Sep 18, 2026
Today: A 30 percent chance of showers and thunderstorms, mainly before noon. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. East wind around 10 mph.
Tonight: A 50 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 67. East wind around 10 mph, with gusts as high as 20 mph.
Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night: Showers and possibly a thunderstorm. Low around 65. Southwest wind around 5 mph becoming northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday: Showers, with thunderstorms also possible after 1pm. High near 73. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Monday: Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Monday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Tuesday: Partly sunny, with a high near 63.
Tuesday Night: Mostly cloudy, with a low around 48.
Wednesday: Mostly sunny, with a high near 66.
Wednesday Night: Partly cloudy, with a low around 50.
Thursday: Mostly sunny, with a high near 69.