Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
79°F
26°C
| Humidity | 85% |
| Wind Speed | Calm |
| Barometer | 30.07 in (1018.1 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 1 Jul 10:56 pm CDT |
Extended Forecast for
Waltonville IL
Extreme Heat Warning July 1, 11:25pm until July 3, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Tonight
Low: 74 °F
Clear
Thursday
High: 96 °F
Sunny
Thursday Night
Low: 76 °F
Mostly Clear
Friday
High: 95 °F
Slight Chance
T-stormsFriday Night
Low: 75 °F
Mostly Clear
Independence Day
High: 94 °F
Slight Chance
T-stormsSaturday Night
Low: 74 °F
Slight Chance
T-storms then
Chance
ShowersSunday
High: 93 °F
Chance
T-storms
Detailed Forecast
Tonight
Clear, with a low around 74. Light south southwest wind.
Thursday
Sunny, with a high near 96. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. Light and variable wind.
Friday
A slight chance of showers and thunderstorms between 10am and 1pm. Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 75. Light and variable wind.
Independence Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Calm wind.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Waltonville IL
38.23°N 89.06°W
38.23°N 89.06°W
10:36 pm CDT Jul 1, 2026
11pm CDT Jul 1, 2026-6pm CDT Jul 8, 2026
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