Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
50°F
10°C
| Humidity | 35% |
| Wind Speed | NW 6 mph |
| Barometer | 29.94 in (1013.9 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 20 Feb 4:52 pm CST |
Extended Forecast for
Anna IL
Tonight

Low: 32 °F
Increasing
CloudsSaturday

High: 43 °F
Partly Sunny
Saturday Night

Low: 24 °F
Mostly Clear
Sunday

High: 37 °F
Sunny
Sunday Night

Low: 18 °F
Mostly Clear
Monday

High: 33 °F
Sunny
Monday Night

Low: 17 °F
Mostly Clear
Tuesday

High: 48 °F
Mostly Sunny
Tuesday Night

Low: 40 °F
Mostly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 32. Calm wind becoming north around 6 mph after midnight.
Saturday
Partly sunny, with a high near 43. North wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 37. Northwest wind 10 to 17 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 18. North northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 33. North northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 17. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 5 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South southwest wind around 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a high near 59. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 39. South southwest wind 8 to 10 mph becoming north northwest after midnight. Winds could gust as high as 18 mph.
Thursday
A chance of showers. Partly sunny, with a high near 53. North northwest wind 7 to 9 mph.
Thursday Night
A slight chance of showers. Mostly clear, with a low around 32. North northwest wind around 6 mph becoming south southwest after midnight.
Friday
Sunny, with a high near 57. South southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST
Point Forecast:
Anna IL
37.45°N 89.24°W
37.45°N 89.24°W
3:22 pm CST Feb 20, 2026
5pm CST Feb 20, 2026-6pm CST Feb 27, 2026


