Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fog
48°F
9°C
| Humidity | 100% |
| Wind Speed | NE 6 mph |
| Barometer | 29.96 in (1014.6 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 0.25 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 27 Dec 5:52 am CST |
Extended Forecast for
Anna ILSimilar City Names
Dense Fog Advisory until December 27, 09:00am
NOW until 9:00am Sat
Dense Fog Advisory
Today
High: 67 °F
Areas Dense
Fog then
Mostly CloudyTonight
Low: 62 °F
Cloudy
Sunday
High: 70 °F
Cloudy then
Showers and
BreezySunday Night
Low: 23 °F
Showers and
Breezy then
Slight Chance
Showers and
BlusteryMonday
High: 30 °F
Sunny
Monday Night
Low: 19 °F
Mostly Clear
Tuesday
High: 33 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Clear
Detailed Forecast
Today
Areas of dense fog before 9am. Otherwise, mostly cloudy, with a high near 67. East wind 5 to 8 mph becoming south southeast in the afternoon.
Tonight
Cloudy, with a low around 62. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Showers, mainly after 4pm. High near 70. Breezy, with a south southwest wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 9pm. Low around 23. Breezy, with a southwest wind 18 to 21 mph becoming west northwest in the evening. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Monday
Sunny, with a high near 30. West northwest wind 14 to 18 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 33. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 24. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 44. West southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 26. Southwest wind around 7 mph becoming northwest after midnight.
New Year's Day
Mostly sunny, with a high near 38. North northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 18. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 33. North wind around 6 mph becoming east northeast in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Anna ILSimilar City Names
37.45°N 89.24°W
37.45°N 89.24°W
3:16 am CST Dec 27, 2025
6am CST Dec 27, 2025-6pm CST Jan 2, 2026
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