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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

36°F

2°C

Humidity 46%
Wind Speed Calm
Barometer 30.45 in (1031.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 28 Nov 12:52 pm CST
Extended Forecast for

2 Miles N Saint Johns IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 39. Light and variable wind.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: A 50 percent chance of snow showers, mainly after 3am. Increasing clouds, with a steady temperature around 32. Calm wind becoming southeast 5 to 8 mph after midnight.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: Rain, possibly mixed with snow showers, becoming all rain after 1pm. High near 41. South southeast wind 9 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 41 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain showers, possibly mixing with snow after midnight, then gradually ending. Low around 26. South wind 15 to 18 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    Low: 26 °F

    Showers then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 32. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 32 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21. North northwest wind 5 to 9 mph becoming northeast after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 33. Northeast wind around 6 mph.

    High: 33 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Monday Night

    Monday Night: Snow showers likely, mainly before midnight. Cloudy, with a low around 22. Calm wind becoming north northwest around 5 mph after midnight.

    Low: 22 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Northwest wind 3 to 7 mph.

    High: 32 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 39. Light and variable wind.
Tonight
A 50 percent chance of snow showers, mainly after 3am. Increasing clouds, with a steady temperature around 32. Calm wind becoming southeast 5 to 8 mph after midnight.
Saturday
Rain, possibly mixed with snow showers, becoming all rain after 1pm. High near 41. South southeast wind 9 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Rain showers, possibly mixing with snow after midnight, then gradually ending. Low around 26. South wind 15 to 18 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Sunday
Mostly cloudy, with a high near 32. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 21. North northwest wind 5 to 9 mph becoming northeast after midnight.
Monday
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 33. Northeast wind around 6 mph.
Monday Night
Snow showers likely, mainly before midnight. Cloudy, with a low around 22. Calm wind becoming north northwest around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 32. Northwest wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 18. Light and variable wind.
Wednesday
Mostly sunny, with a high near 40. Light south wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 22. Light and variable wind becoming northwest around 6 mph after midnight.
Thursday
Partly sunny, with a high near 35. Northwest wind 5 to 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:
12:51 pm CST Nov 28, 2025
Forecast Valid:
1pm CST Nov 28, 2025-6pm CST Dec 4, 2025
 
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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