Weather forecast for: Ottawa IL
Last Update: 4:01 pm CST Nov 1, 2026
This Afternoon: A 20 percent chance of showers. Cloudy, with a high near 65. East southeast wind around 5 mph, with gusts as high as 15 mph.
Tonight: A slight chance of showers before 9pm, then patchy drizzle after 9pm. Cloudy, with a low around 55. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Monday: A chance of showers before 2pm, then a slight chance of showers after 5pm. Cloudy, with a high near 64. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night: A slight chance of showers before 8pm, then a chance of showers after midnight. Cloudy, with a low around 62. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 73. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday Night: Showers. Low around 56. Chance of precipitation is 90%.
Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 66.
Wednesday Night: Mostly cloudy, with a low around 48.
Thursday: Mostly cloudy, with a high near 61.
Thursday Night: Mostly cloudy, with a low around 46.
Friday: Mostly cloudy, with a high near 58.
Friday Night: Mostly cloudy, with a low around 40.
Saturday: Partly sunny, with a high near 58.
Saturday Night: Mostly cloudy, with a low around 41.
Sunday: Mostly sunny, with a high near 60.
WeatherWorld.com
City of Ottawa, IL
