Weather forecast for: Mount Vernon IL
Last Update: 3:46 am CST Nov 8, 2026
Today: Patchy fog before 7am. Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64. Calm wind becoming west southwest 5 to 9 mph in the morning.
Tonight: Patchy fog after 8pm. Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Light and variable wind.
Monday: Patchy fog before 9am. Patchy frost before 7am. Otherwise, sunny, with a high near 65. Light south wind.
Monday Night: Clear, with a low around 40. Calm wind.
Tuesday: Sunny, with a high near 69. Calm wind becoming west southwest around 6 mph.
Tuesday Night: Mostly clear, with a low around 43. Calm wind.
Veterans Day: A 30 percent chance of showers after noon. Partly sunny, with a high near 66. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 39. North wind 5 to 10 mph.
Thursday: Mostly sunny, with a high near 55. North wind 10 to 17 mph, with gusts as high as 21 mph.
Thursday Night: Partly cloudy, with a low around 31. North wind 8 to 13 mph becoming light.
Friday: Sunny, with a high near 50. North northwest wind 5 to 10 mph.
Friday Night: Mostly clear, with a low around 30. Calm wind.
Saturday: Sunny, with a high near 55. Calm wind becoming west northwest 5 to 7 mph.
WeatherWorld.com
City of Mt. Vernon, Illinois
