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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

10°F

-12°C

Humidity 63%
Wind Speed S 12 mph
Barometer 30.39 in (1029.9 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 26 Jan 10:52 pm CST
Extended Forecast for

2 Miles N Saint Johns IL

Extreme Cold Warning January 26, 11:35pm until January 27, 10:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 11:35pm until January 27, 10:00am

    NOW until 10:00am Tue

    Extreme Cold Warning

  • Tonight

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Wind chill values as low as -3. Southwest wind 6 to 10 mph becoming northwest in the afternoon.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. Wind chill values as low as zero. Calm wind becoming west southwest around 6 mph.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. Light and variable wind.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 21. North wind 3 to 6 mph.

    High: 21 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. North wind 3 to 6 mph.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 15. North wind 6 to 9 mph.

    High: 15 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 3. Wind chill values as low as -7. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 30. Wind chill values as low as -3. Southwest wind 6 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 28. Wind chill values as low as zero. Calm wind becoming west southwest around 6 mph.
Wednesday Night
Partly cloudy, with a low around 9. Light and variable wind.
Thursday
Mostly cloudy, with a high near 21. North wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 2. North wind 3 to 6 mph.
Friday
Partly sunny, with a high near 15. North wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around -1. Northwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 19. Northwest wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 1. West northwest wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 26. West northwest wind 5 to 7 mph becoming south in the afternoon.
Sunday Night
Partly cloudy, with a low around 13. South southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 34. Southwest wind around 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Saint Johns IL
 38.06°N 89.24°W
Last Update:
10:26 pm CST Jan 26, 2026
Forecast Valid:
11pm CST Jan 26, 2026-6pm CST Feb 2, 2026
 
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Additional Resources

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Chance of Precipitation