National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Mostly Cloudy

84°F

29°C

Humidity 67%
Wind Speed Vrbl 7 mph
Barometer 30.01 in (1016.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 20 Aug 11:56 am CDT
Extended Forecast for

2 Miles SW Whittington IL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms between 3pm and 4pm. Mostly sunny, with a high near 86. North wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Light north northeast wind.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 87. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. North northwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms between 3pm and 4pm. Mostly sunny, with a high near 86. North wind 5 to 7 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Light north northeast wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light and variable wind.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. Calm wind.
Saturday
Sunny, with a high near 87. Calm wind becoming northwest 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 65. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 62. Calm wind.
Monday
Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 87. South southeast wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 66. Light southeast wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming west northwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Whittington IL
 38.09°N 88.9°W
Last Update:
11:26 am CDT Aug 20, 2026
Forecast Valid:
12pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation