Severe Thunderstorms and Heavy Rain in the Central Plains to Upper Midwest; Extreme Heat in Parts of the South

Thunderstorms with severe wind gusts and hail will be possible today across parts of the central Plains, and from the Missouri Valley into the upper Mississippi Valley. Heavy rain associated with the thunderstorms may also produce flash/urban flooding. Critical fire weather conditions expected in the Great Basin and interior Northwest. Dangerous heat continues across the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Mostly Cloudy

79°F

26°C

Humidity	82%
Wind Speed	Calm
Barometer	30.09 in (1018.6 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	8 Jul 8:56 am CDT

More Information:

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

Extended Forecast for

4 Miles SSE Dahlgren IL

Today
High: 87 °F
Chance
T-storms
Tonight
Low: 70 °F
Slight Chance
T-storms then
Mostly Clear
Thursday
High: 93 °F
Sunny then
Chance
T-storms
Thursday Night
Low: 73 °F
Showers
Likely
Friday
High: 90 °F
Showers
Likely then
T-storms
Friday Night
Low: 71 °F
T-storms
Likely then
Showers
Likely
Saturday
High: 87 °F
Chance
T-storms then
Showers
Likely
Saturday Night
Low: 70 °F
Chance
T-storms
Sunday
High: 87 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 87. Calm wind.

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 70. Calm wind.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 93. Southwest wind 3 to 7 mph.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 73. South wind around 6 mph. Chance of precipitation is 70%.

Friday

Showers and possibly a thunderstorm. High near 90. West southwest wind 5 to 7 mph. Chance of precipitation is 80%.

Friday Night

Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

Saturday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Light west southwest wind. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 70. Light and variable wind.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming north northeast around 6 mph in the morning.

Sunday Night

Partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon.

Monday Night

Clear, with a low around 70. Northeast wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon.