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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

73°F

23°C

Humidity	96%
Wind Speed	Calm
Barometer	30.07 in (1017.8 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	8 Jul 7:52 am CDT

More Information:

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

Extended Forecast for

5 Miles NNW Vergennes IL

Today
High: 88 °F
Chance
T-storms and
Patchy Fog
Tonight
Low: 70 °F
Slight Chance
T-storms then
Patchy Fog
Thursday
High: 93 °F
Sunny then
Chance
T-storms
Thursday Night
Low: 73 °F
Showers
Likely
Friday
High: 91 °F
Chance
T-storms then
Showers
Likely
Friday Night
Low: 71 °F
T-storms
Likely then
Showers
Likely
Saturday
High: 88 °F
Chance
T-storms then
Showers
Likely
Saturday Night
Low: 70 °F
Chance
T-storms
Sunday
High: 88 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms, mainly after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Calm wind.

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Patchy fog between 1am and 4am. Otherwise, partly cloudy, with a low around 70. Calm wind.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds, with a high near 93. Calm wind becoming south southwest 5 to 7 mph in the morning.

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

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 91. West southwest wind 3 to 6 mph. Chance of precipitation is 70%.

Friday Night

Showers likely and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 71. West 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 88. Light southwest wind. Chance of precipitation is 60%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon.

Sunday Night

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

Monday

Sunny, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 70. Light northeast wind.

Tuesday

Sunny, with a high near 92. Light northeast wind.