Weather forecast for: Marengo IL
Last Update: 9:01 am CST Nov 5, 2026
Today: Areas of drizzle with scattered showers. Cloudy, with a high near 50. Southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Tonight: Areas of drizzle with scattered showers before 9pm, then patchy drizzle between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 36. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday: Mostly sunny, with a high near 47. North wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night: Mostly clear, with a low around 28. North northwest wind 5 to 10 mph becoming light northwest in the evening.
Saturday: Sunny, with a high near 50. Calm wind becoming west northwest around 5 mph.
Saturday Night: Partly cloudy, with a low around 32.
Sunday: Sunny, with a high near 57.
Sunday Night: Mostly clear, with a low around 34.
Monday: Sunny, with a high near 60.
Monday Night: Mostly clear, with a low around 39.
Tuesday: Sunny, with a high near 61.
Tuesday Night: Partly cloudy, with a low around 37.
Veterans Day: Mostly sunny, with a high near 57.
WeatherWorld.com
City of Marengo, IL
