Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fog/Mist
34°F
1°C
| Humidity | 97% |
| Wind Speed | SE 5 mph |
| Barometer | 29.96 in (1014.8 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 3.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 7 Dec 3:52 am CST |
Extended Forecast for
Jonesboro IL
Today
High: 46 °F
Slight Chance
Drizzle and
Patchy FogTonight
Low: 27 °F
Cloudy
Monday
High: 38 °F
Decreasing
CloudsMonday Night
Low: 26 °F
Mostly Clear
Tuesday
High: 48 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Mostly Cloudy
Wednesday
High: 51 °F
Partly Sunny
Wednesday Night
Low: 30 °F
Slight Chance
RainThursday
High: 41 °F
Chance Rain
Detailed Forecast
Today
A slight chance of drizzle. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 46. Light and variable wind becoming north 5 to 10 mph in the morning.
Tonight
Cloudy, with a low around 27. North wind around 10 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind 5 to 8 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 51. Southwest wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 30. Northwest wind around 6 mph becoming light and variable.
Thursday
A chance of rain. Mostly cloudy, with a high near 41. East wind 6 to 8 mph becoming north in the afternoon.
Thursday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 21. North northwest wind 6 to 10 mph.
Friday
Partly sunny, with a high near 30. North northwest wind around 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 10. North northwest wind around 9 mph.
Saturday
Mostly sunny, with a high near 25. Northwest wind 6 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Jonesboro IL
37.46°N 89.27°W
37.46°N 89.27°W
3:31 am CST Dec 7, 2025
4am CST Dec 7, 2025-6pm CST Dec 13, 2025
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