Weather forecast for: Jerseyville IL
Last Update: 10:30 pm CST Mar 2, 2026
Tonight: Patchy rain, then rain and possibly a thunderstorm after 3am. Patchy fog. Low around 37. Southeast wind around 6 mph. Chance of precipitation is 90%.
Tuesday: Rain and thunderstorms, mainly before 1pm, then rain and possibly a thunderstorm after 3pm. Patchy fog between noon and 1pm. High near 54. East wind around 6 mph. Chance of precipitation is 100%.
Tuesday Night: Rain and possibly a thunderstorm before 5am, then a chance of rain and thunderstorms after 5am. Patchy fog between midnight and 1am. Low around 46. Northeast wind 6 to 9 mph. Chance of precipitation is 100%.
Wednesday: Rain and possibly a thunderstorm before noon, then rain between noon and 1pm, then rain and possibly a thunderstorm after 1pm. Patchy fog between 8am and noon. High near 60. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 90%.
Wednesday Night: Rain and possibly a thunderstorm. Low around 53. South wind 6 to 8 mph. Chance of precipitation is 90%.
Thursday: Rain likely and possibly a thunderstorm before 9am, then rain likely between 9am and noon, then a chance of rain and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 70%.
Thursday Night: A slight chance of rain, then a chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday: Rain likely and possibly a thunderstorm before noon, then a chance of rain. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 57. Chance of precipitation is 80%.
Saturday: Rain likely and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. Cloudy, with a high near 67. Chance of precipitation is 70%.
Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 45.
Sunday: A 20 percent chance of rain. Partly sunny, with a high near 63.
Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 48.
Monday: A 30 percent chance of rain. Mostly sunny, with a high near 69.