National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

42°F

6°C

Humidity 71%
Wind Speed N 10 G 17 mph
Barometer 30.05 in (1017.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 6 Feb 3:52 pm CST
Extended Forecast for

2 Miles N Saint Johns IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. North northwest wind around 14 mph, with gusts as high as 28 mph.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. North northwest wind 6 to 11 mph, with gusts as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 34. North northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24. Southeast wind 3 to 7 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48. South wind 6 to 9 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. South southeast wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. Calm wind becoming south southwest around 5 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. South wind 3 to 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers after noon. Mostly cloudy, with a high near 65. South southwest wind 6 to 10 mph.

    High: 65 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. North northwest wind around 14 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 22. North northwest wind 6 to 11 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 34. North northeast wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly cloudy, with a low around 24. Southeast wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 48. South wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 30. South southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 58. Calm wind becoming south southwest around 5 mph.
Monday Night
Partly cloudy, with a low around 40. South wind 3 to 6 mph.
Tuesday
A chance of showers after noon. Mostly cloudy, with a high near 65. South southwest wind 6 to 10 mph.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 43. South southwest wind around 9 mph becoming northwest after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 52. North northwest wind 7 to 10 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 33. North wind around 6 mph.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 47. North wind 6 to 8 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:
3:21 pm CST Feb 6, 2026
Forecast Valid:
4pm CST Feb 6, 2026-6pm CST Feb 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation