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.

Mostly Cloudy

81°F

27°C

Humidity 58%
Wind Speed S 17 mph
Barometer 29.79 in (1008.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Oct 11:52 am CDT
Extended Forecast for

Coello IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall.  Temperature falling to around 73 by 5pm. Southwest wind 13 to 15 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%.

    High: 82 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers likely. Some of the storms could produce heavy rainfall.  Low around 51. South southwest wind 11 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%.

    Low: 51 °F

    Heavy Rain
    then Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 7am.  Cloudy through mid morning, then gradual clearing, with a high near 65. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 30 mph.

    High: 65 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 41. West wind 5 to 9 mph becoming light.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Breezy, with a south wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. South southwest wind 10 to 18 mph becoming west after midnight. Winds could gust as high as 24 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. Breezy, with a west northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 67 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. West northwest wind 5 to 10 mph.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. West northwest wind 5 to 9 mph.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Temperature falling to around 73 by 5pm. Southwest wind 13 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 4am, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. South southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
Sunday
A 30 percent chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 65. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 41. West wind 5 to 9 mph becoming light.
Monday
Sunny, with a high near 72. Breezy, with a south wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 28 mph.
Monday Night
Mostly clear, with a low around 49. South southwest wind 10 to 18 mph becoming west after midnight. Winds could gust as high as 24 mph.
Tuesday
Sunny, with a high near 67. Breezy, with a west northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Clear, with a low around 39. West northwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 67. West northwest wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 43. South wind 3 to 5 mph.
Thursday
A slight chance of showers. Mostly sunny, with a high near 70. South wind 6 to 11 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48. South wind 5 to 7 mph.
Friday
A chance of showers. Mostly sunny, with a high near 69. South wind 6 to 11 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Coello IL
 38.03°N 89.1°W
9:16 am CDT Oct 18, 2025
12pm CDT Oct 18, 2025-6pm CDT Oct 24, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database