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

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

A Few Clouds

79°F

26°C

Humidity 72%
Wind Speed Vrbl 5 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 15 Jun 2:56 pm CDT
Extended Forecast for

Sesser IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 85. Light east wind.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 67. Light north northeast wind.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 80. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, with a low around 69. Light and variable wind.

    Low: 69 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. South wind 6 to 8 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South southwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 89 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. West wind around 7 mph.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 85. Light east wind.
Tonight
A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 67. Light north northeast wind.
Monday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 80. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, with a low around 69. Light and variable wind.
Tuesday
Mostly sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 73. South wind 6 to 8 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South southwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Juneteenth
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. West wind around 7 mph.
Thursday Night
Mostly clear, with a low around 67. Light and variable wind.
Friday
Sunny, with a high near 89. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 72. South wind around 6 mph.
Saturday
Sunny, with a high near 93. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sesser IL
 38.09°N 89.04°W
Last Update:
3:17 pm CDT Jun 15, 2025
Forecast Valid:
3pm CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation