Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

82°F

28°C

Humidity	82%
Wind Speed	NE 3 mph
Barometer	30.11 in (1019.3 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	18 Jul 11:56 am CDT

More Information:

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

Extended Forecast for

Mount Vernon IL

This Afternoon
High: 89 °F
Chance
T-storms
Tonight
Low: 73 °F
Chance
T-storms
Saturday
High: 91 °F
Showers
Likely
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 93 °F
Chance
T-storms
Sunday Night
Low: 74 °F
Chance
T-storms
Monday
High: 94 °F
Chance
T-storms
Monday Night
Low: 76 °F
Slight Chance
T-storms
Tuesday
High: 96 °F
Slight Chance
T-storms

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 89. Northeast wind around 6 mph becoming calm.

Tonight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light south southeast wind.

Saturday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Southwest wind 3 to 7 mph. Chance of precipitation is 60%.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.

Sunday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the morning.

Sunday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Light south southeast wind.

Monday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. South southwest wind 3 to 6 mph.

Monday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind 3 to 5 mph.

Tuesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. South southwest wind 3 to 7 mph.

Tuesday Night

Mostly clear, with a low around 76. South wind 3 to 6 mph.

Wednesday

Sunny and hot, with a high near 97. South southwest wind 3 to 7 mph.