National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

46°F

8°C

Humidity 83%
Wind Speed SE 3 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 10 Nov 11:52 pm CST
Extended Forecast for

Anna IL

  • Overnight

    Overnight: Mostly clear, with a low around 45. Light southwest wind.

    Low: 45 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 71. Light southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. North northwest wind 9 to 11 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 53. North northwest wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. North northwest wind 6 to 10 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. North northwest wind 6 to 11 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. Light north northwest wind.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Light southwest wind.
Veterans Day
Sunny, with a high near 71. Light southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 42. North northwest wind 9 to 11 mph.
Thursday
Mostly sunny, with a high near 53. North northwest wind 9 to 15 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 32. North northwest wind 6 to 10 mph.
Friday
Sunny, with a high near 46. North northwest wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 26. Light north northwest wind.
Saturday
Sunny, with a high near 49. Calm wind.
Saturday Night
Mostly clear, with a low around 29. Calm wind.
Sunday
Mostly sunny, with a high near 52. Calm wind becoming east southeast around 6 mph.
Sunday Night
Partly cloudy, with a low around 34. Light east wind.
Monday
Mostly sunny, with a high near 53. Calm wind becoming east around 6 mph.
Monday Night
Mostly clear, with a low around 33. Calm wind.
Tuesday
Sunny, with a high near 56. Calm wind becoming east around 5 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:
5:46 pm CST Nov 10, 2026
Forecast Valid:
12am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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