Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
47°F
8°C
| Humidity | 44% |
| Wind Speed | S 14 mph |
| Barometer | 30.22 in (1023.6 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 12 Jan 4:52 pm CST |
Extended Forecast for
Anna IL
Tonight
Low: 34 °F
Mostly Clear
Tuesday
High: 58 °F
Sunny
Tuesday Night
Low: 41 °F
Chance
ShowersWednesday
High: 45 °F
Slight Chance
Showers then
Partly SunnyWednesday Night
Low: 19 °F
Partly Cloudy
Thursday
High: 31 °F
Sunny
Thursday Night
Low: 23 °F
Mostly Cloudy
Friday
High: 44 °F
Partly Sunny
Friday Night
Low: 21 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 34. South southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 58. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of showers, mainly after midnight. Increasing clouds, with a low around 41. Southwest wind 6 to 9 mph becoming west northwest after midnight.
Wednesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 45. North northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 19. North northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 31. North northwest wind 5 to 9 mph becoming southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 23. South wind 5 to 10 mph, with gusts as high as 18 mph.
Friday
Partly sunny, with a high near 44. West wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 21. West wind around 9 mph.
Saturday
Partly sunny, with a high near 31. West wind 8 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 13. West northwest wind around 9 mph.
Sunday
Sunny, with a high near 27. West northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 14. Southwest wind around 7 mph.
M.L.King Day
Sunny, with a high near 36. West southwest wind 6 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Anna IL
37.45°N 89.24°W
37.45°N 89.24°W
3:16 pm CST Jan 12, 2026
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
