Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

37°F

3°C

Humidity 93%
Wind Speed S 3 mph
Barometer 30.29 in (1025.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 6 Apr 3:52 am CDT
Extended Forecast for

2 Miles N Saint Johns IL

  • Today

    Today: Sunny, with a high near 65. West wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 41. North northeast wind 6 to 8 mph.

    Low: 41 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. East northeast wind around 10 mph.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. East southeast wind around 7 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 72 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 71. South wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 57. South wind around 7 mph.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 75. South wind 6 to 8 mph.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 65. West wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.
Tonight
Increasing clouds, with a low around 41. North northeast wind 6 to 8 mph.
Tuesday
Partly sunny, with a high near 56. East northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 39. East southeast wind around 7 mph.
Wednesday
Partly sunny, with a high near 72. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 53. South southeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 71. South wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. South wind around 7 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. South wind 6 to 8 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming east in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. South wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 61. South southeast wind around 7 mph.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind 8 to 15 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Saint Johns IL
 38.06°N 89.24°W
2:57 am CDT Apr 6, 2026
4am CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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