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.

Fog/Mist

74°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.16 in (1021.2 mb)
Dewpoint 74°F (23°C)
Visibility 5.00 mi
Last update 25 Jun 3:56 am CDT
Extended Forecast for

3 Miles SE Scheller IL

Heat Advisory June 25, 04:11am until June 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 25, 04:11am until June 27, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • Today

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. Light south wind.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. South southwest wind 3 to 6 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. West southwest wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind around 6 mph becoming calm in the evening.

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. West southwest wind 3 to 6 mph. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Light south southwest wind.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 95. Heat index values as high as 107. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. Light south wind.
Thursday
A slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 76. South southwest wind 3 to 6 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. West southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. West southwest wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Light south southwest wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. Light south southwest wind.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. West southwest wind 3 to 8 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. North northwest wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Scheller IL
 38.14°N 89.04°W
Last Update:
2:01 am CDT Jun 25, 2025
Forecast Valid:
4am CDT Jun 25, 2025-6pm CDT Jul 1, 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