Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

20°F

-7°C

Humidity 85%
Wind Speed NW 3 mph
Barometer 30.18 in (1022.4 mb)
Dewpoint 16°F (-9°C)
Visibility 9.00 mi
Last update 5 Dec 1:52 am CST
Extended Forecast for

Anna ILSimilar City Names

  • Overnight

    Overnight: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 40. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 27. South southwest wind 3 to 6 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 31. Light east southeast wind.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon.  Mostly cloudy, with a high near 45. Light and variable wind becoming north northwest 5 to 10 mph in the morning.

    High: 45 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of rain showers before 9pm, then a slight chance of snow showers between 9pm and midnight.  Mostly cloudy, with a low around 20. North wind 6 to 10 mph.  Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. North wind around 6 mph becoming calm  in the morning.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 8 mph after midnight.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 22. Calm wind.
Friday
Sunny, with a high near 40. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 27. South southwest wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 44. Calm wind.
Saturday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 31. Light east southeast wind.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. Light and variable wind becoming north northwest 5 to 10 mph in the morning.
Sunday Night
A slight chance of rain showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Mostly cloudy, with a low around 20. North wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 35. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 8 mph after midnight.
Tuesday
Sunny, with a high near 46. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 50. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 24. Northwest wind around 8 mph.
Thursday
Partly sunny, with a high near 36. Northwest wind 6 to 8 mph becoming south in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Anna ILSimilar City Names
 37.45°N 89.24°W
1:31 am CST Dec 5, 2025
2am CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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