National Weather Service

News Headlines

Fall Spotter Training Classes

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog/Mist

73°F

23°C

Humidity	96%
Wind Speed	Calm
Barometer	30.01 in (1015.7 mb)
Dewpoint	72°F (22°C)
Visibility	6.00 mi
Last update	19 Aug 3:52 am CDT

More Information:

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

Extended Forecast for

5 Miles NNE Oraville IL

Heat Advisory August 19, 04:38am until August 19, 07:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 19, 04:38am until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
Today
High: 97 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 72 °F
Chance
T-storms
Wednesday
High: 89 °F
Mostly Sunny
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 87 °F
Mostly Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming west northwest 5 to 7 mph in the morning.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 72. North northwest wind 3 to 5 mph.

Wednesday

Mostly sunny, with a high near 89. North wind 6 to 11 mph.

Wednesday Night

Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph.

Thursday

Mostly sunny, with a high near 87. North northeast wind 6 to 10 mph.

Thursday Night

Mostly clear, with a low around 64. North northeast wind 5 to 8 mph becoming calm in the evening.

Friday

Sunny, with a high near 90. Calm wind becoming north northeast 5 to 7 mph in the morning.