Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Thunderstorm in Vicinity Rain Fog/Mist

67°F

19°C

Humidity	91%
Wind Speed	SE 7 mph
Barometer	29.70 in (1005.5 mb)
Dewpoint	64°F (18°C)
Visibility	6.00 mi
Last update	18 Oct 6:52 pm CDT

More Information:

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

Extended Forecast for

Grand Tower IL

Tonight
Low: 51 °F
Showers then
Showers
Likely
Sunday
High: 65 °F
Chance
Showers then
Sunny
Sunday Night
Low: 41 °F
Clear
Monday
High: 70 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 69 °F
Sunny
Tuesday Night
Low: 40 °F
Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 39 °F
Mostly Clear

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 4am, then showers likely. Low around 51. West wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

Sunday

A 30 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 65. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.

Sunday Night

Clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

Monday

Sunny, with a high near 70. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

Monday Night

Mostly clear, with a low around 49. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.

Tuesday

Sunny, with a high near 69. West northwest wind 7 to 14 mph, with gusts as high as 22 mph.

Tuesday Night

Clear, with a low around 40. West northwest wind 5 to 9 mph.

Wednesday

Sunny, with a high near 65. West northwest wind 6 to 9 mph.