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.

Light Rain

70°F

21°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 6 Oct 6:52 pm CDT
Extended Forecast for

Anna IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 66. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 66 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 76. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. North wind around 9 mph.

    Low: 56 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northeast wind around 11 mph, with gusts as high as 18 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. Northeast wind around 6 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Northeast wind 6 to 8 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 66. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 76. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. North wind around 9 mph.
Wednesday
Sunny, with a high near 72. Northeast wind around 11 mph, with gusts as high as 18 mph.
Wednesday Night
Clear, with a low around 47. Northeast wind around 6 mph.
Thursday
Sunny, with a high near 70. Northeast wind 6 to 8 mph.
Thursday Night
Clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 73. Light and variable wind.
Friday Night
Mostly clear, with a low around 53. Calm wind.
Saturday
Sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 52. Light east wind.
Sunday
Sunny, with a high near 77. Calm wind becoming south southeast around 6 mph in the morning.
Sunday Night
Mostly clear, with a low around 56. Light southeast wind.
Columbus Day
Sunny, with a high near 80. South wind 3 to 7 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:
6:01 pm CDT Oct 6, 2025
Forecast Valid:
7pm CDT Oct 6, 2025-6pm CDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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