Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
16°F
-9°C
| Humidity | 62% |
| Wind Speed | W 6 mph |
| Barometer | 30.29 in (1026.5 mb) |
| Dewpoint | 5°F (-15°C) |
| Visibility | 10.00 mi |
| Wind Chill | 7°F (-14°C) |
| Last update | 18 Jan 12:52 am CST |
Extended Forecast for
Anna IL
Overnight

Low: 12 °F
Clear
Sunday

High: 30 °F
Chance
FlurriesSunday Night

Low: 16 °F
Mostly Clear
M.L.King Day

High: 23 °F
Mostly Sunny
Monday Night

Low: 10 °F
Mostly Clear
Tuesday

High: 35 °F
Sunny
Tuesday Night

Low: 26 °F
Partly Cloudy
Wednesday
High: 44 °F
Slight Chance
Showers then
Mostly SunnyWednesday Night

Low: 23 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 12. West northwest wind 3 to 5 mph.
Sunday
A chance of flurries between 1pm and 3pm. Mostly sunny, with a high near 30. Light west wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
Mostly clear, with a low around 16. Southwest wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
M.L.King Day
Mostly sunny, with a high near 23. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 10. Light and variable wind.
Tuesday
Sunny, with a high near 35. Light south southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 26. South wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of showers before noon. Mostly sunny, with a high near 44. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 23. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 38. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 26. South wind 3 to 7 mph.
Friday
A chance of showers. Partly sunny, with a high near 45. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 30. South wind 7 to 10 mph becoming north after midnight.
Saturday
A chance of showers. Mostly cloudy, with a high near 37. North wind around 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Anna IL
37.45°N 89.24°W
37.45°N 89.24°W
1:16 am CST Jan 18, 2026
1am CST Jan 18, 2026-6pm CST Jan 24, 2026



