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.

Fair

95°F

35°C

Humidity 40%
Wind Speed S 14 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 31 Aug 5:56 pm CDT
Extended Forecast for

Ina IL

Heat Advisory August 31, 06:04pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 31, 06:04pm until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Calm wind becoming southwest around 6 mph in the morning.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 78. South southwest wind 5 to 9 mph.

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Heat index values as high as 105. Light south southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South southwest wind around 6 mph becoming calm after midnight.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. Light south southwest wind.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms. Sunny and hot, with a high near 100. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 100 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 75. South southwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 101. Calm wind becoming southwest around 6 mph in the morning.
Tuesday Night
Clear, with a low around 78. South southwest wind 5 to 9 mph.
Wednesday
Sunny and hot, with a high near 101. Heat index values as high as 105. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 78. South southwest wind around 6 mph becoming calm after midnight.
Thursday
Sunny and hot, with a high near 102. Calm wind becoming southwest 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 78. Light south southwest wind.
Friday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 100. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. Calm wind.
Saturday
A slight chance of showers before 1pm. Sunny and hot, with a high near 98. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 71. East wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 93. East northeast wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 68. East northeast wind 3 to 7 mph.
Labor Day
Sunny, with a high near 93. Calm wind becoming east 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ina IL
 38.16°N 88.9°W
Last Update:
5:46 pm CDT Aug 31, 2026
Forecast Valid:
6pm CDT Aug 31, 2026-6pm CDT Sep 7, 2026
 
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