National Weather Service

News Headlines

Fall Spotter Training Classes

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

89°F

32°C

Humidity	61%
Wind Speed	S 6 mph
Barometer	30.12 in (1019.7 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	16 Aug 9:56 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles SW Whittington IL

Heat Advisory August 16, 12:00pm until August 19, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 97 °F
Hot
Tonight
Low: 76 °F
Mostly Clear
Sunday
High: 99 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 77 °F
Partly Cloudy
Monday
High: 100 °F
Hot
Monday Night
Low: 77 °F
Mostly Clear
Tuesday
High: 101 °F
Hot
Tuesday Night
Low: 75 °F
Chance
T-storms
Wednesday
High: 90 °F
Slight Chance
T-storms

Detailed Forecast

Today

Sunny and hot, with a high near 97. Calm wind becoming south southeast around 5 mph in the afternoon.

Tonight

Mostly clear, with a low around 76. South southeast wind around 5 mph becoming calm in the evening.

Sunday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 99. Heat index values as high as 105. Light and variable wind.

Sunday Night

Partly cloudy, with a low around 77. Light and variable wind.

Monday

Sunny and hot, with a high near 100. Light east wind.

Monday Night

Mostly clear, with a low around 77. East southeast wind around 5 mph becoming calm in the evening.

Tuesday

Sunny and hot, with a high near 101. Calm wind becoming west around 6 mph in the afternoon.

Tuesday Night

A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 75. South wind around 6 mph becoming calm in the evening.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. North northeast wind 6 to 10 mph.