Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78° N Lon: 89.25° W Elev: 400 ft.

Mostly Cloudy

85°F

29°C

Humidity	72%
Wind Speed	S 9 mph
Barometer	30.03 in (1016.5 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	13 Jul 11:52 am CDT

More Information:

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

Detailed forecast for

Union County

Today

Mostly sunny. Patchy fog this morning. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.

Tonight

Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

Monday

Partly sunny. Areas of fog in the morning. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Calm winds, becoming southwest around 5 mph in the afternoon. Chance of rain 50 percent.

Monday Night

Mostly cloudy. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable.

Tuesday

Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds around 5 mph. Chance of rain 50 percent.

Tuesday Night

Partly cloudy. Lows in the lower 70s.

Wednesday Through Thursday

Partly cloudy with a chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 40 percent.

Thursday Night And Friday

Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 40 percent.

Friday Night

Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s.

Saturday

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.