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.

Overcast

48°F

9°C

Humidity 80%
Wind Speed NW 15 G 33 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 11 Mar 4:52 pm CDT
Extended Forecast for

Anna IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Cloudy, with a steady temperature around 49. Breezy, with a north northwest wind around 20 mph, with gusts as high as 31 mph.

    High: 49 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 32. North wind 10 to 18 mph, with gusts as high as 31 mph.

    Low: 32 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 53. North wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. South wind 7 to 17 mph, with gusts as high as 26 mph.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming east northeast after midnight.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. East northeast wind 7 to 9 mph becoming south southeast in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 69. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.

    High: 69 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Cloudy, with a steady temperature around 49. Breezy, with a north northwest wind around 20 mph, with gusts as high as 31 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 32. North wind 10 to 18 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 53. North wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 40. South wind 7 to 17 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming east northeast after midnight.
Saturday
Mostly sunny, with a high near 64. East northeast wind 7 to 9 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 69. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.
Sunday Night
A chance of rain showers before 1am, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 39. Northwest wind around 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 20. Northwest wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 42. North northwest wind 5 to 8 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. South wind around 7 mph.
Wednesday
Mostly cloudy, with a high near 55. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
Last Update:
1:26 pm CDT Mar 11, 2026
Forecast Valid:
5pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation