Weather forecast for: Augusta IL
Last Update: 9:46 pm CDT Sep 18, 2026
Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. South wind 5 to 10 mph.
Saturday: Increasing clouds, with a high near 90. Southwest wind 5 to 10 mph.
Saturday Night: A chance of showers and thunderstorms between midnight and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 68. South wind around 5 mph becoming north in the evening. Chance of precipitation is 50%.
Sunday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Northwest wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 70%.
Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 55.
Tuesday: Mostly cloudy, with a high near 64.
Tuesday Night: Mostly cloudy, with a low around 50.
Wednesday: Mostly sunny, with a high near 67.
Wednesday Night: Partly cloudy, with a low around 53.
Thursday: Mostly sunny, with a high near 70.
Thursday Night: Partly cloudy, with a low around 55.
Friday: Mostly sunny, with a high near 71.
WeatherWorld.com
