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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

52°F

11°C

Humidity 40%
Wind Speed SE 6 mph
Barometer 30.23 in (1023.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 12 Mar 2:52 pm CDT
Extended Forecast for

2 Miles ENE Saint Johns IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. West southwest wind around 7 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph.

    Low: 42 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 13 to 18 mph, with gusts as high as 32 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. East wind 6 to 11 mph becoming south southeast in the afternoon.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Southeast wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers and possibly a thunderstorm after 1pm. High near 71. Breezy, with a south wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

    High: 71 °F

    Breezy.
    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 24 to 26 mph becoming west northwest after midnight. Winds could gust as high as 36 mph.

    Low: 25 °F

    Breezy.
    Showers then
    Rain/Snow

  • Monday

    Monday: Partly sunny, with a high near 33. Breezy, with a west northwest wind 22 to 25 mph, with gusts as high as 33 mph.

    High: 33 °F

    Partly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 54. West southwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 42. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 13 to 18 mph, with gusts as high as 32 mph.
Friday Night
Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 66. East wind 6 to 11 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 54. Southeast wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday
A slight chance of showers, then showers and possibly a thunderstorm after 1pm. High near 71. Breezy, with a south wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 25. Breezy, with a south southwest wind 24 to 26 mph becoming west northwest after midnight. Winds could gust as high as 36 mph.
Monday
Partly sunny, with a high near 33. Breezy, with a west northwest wind 22 to 25 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 14. Northwest wind 8 to 18 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 37. West wind 7 to 9 mph.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 26. South southeast wind 7 to 9 mph.
Wednesday
Partly sunny, with a high near 55. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Saint Johns IL
 38.03°N 89.19°W
Last Update:
1:21 pm CDT Mar 12, 2026
Forecast Valid:
3pm CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation