Thursday
Cloudy
High:
46°F
Cloudy, with a high near 46. Calm wind becoming east southeast around 5 mph.
Mount Vernon, IL Weather - Extended Forecast
Thursday Night
Chance of showers and thunderstorms
Overnight low:
32°F
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 32. Calm wind.
Friday
Mostly sunny
High:
52°F
Mostly sunny, with a high near 52. Calm wind becoming southeast around 5 mph.
Friday Night
Mostly cloudy
Overnight low:
36°F
Mostly cloudy, with a low around 36. Light east southeast wind.
Saturday
Chance of showers
High:
51°F
Saturday Night
Showers likely
Overnight low:
43°F
Sunday
Chance of showers
High:
55°F
Sunday Night
Mostly clear
Overnight low:
35°F
Washington's Birthday
Sunny
High:
59°F