Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
39°F
4°C
| Humidity | 76% |
| Wind Speed | S 18 mph |
| Barometer | 29.90 in (1012.8 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 7.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 9 Dec 1:52 pm CST |
Extended Forecast for
3 Miles NW Royalton IL
This Afternoon

High: 46 °F
Partly Sunny
Tonight
Low: 42 °F⇑
Mostly Cloudy
and Breezy
then Slight
Chance
ShowersWednesday

High: 46 °F⇓
Mostly Cloudy
and BreezyWednesday Night

Low: 26 °F
Mostly Cloudy
Thursday

High: 40 °F
Mostly Cloudy
Thursday Night

Low: 34 °F
Mostly Cloudy
Friday

High: 50 °F
Mostly Sunny
Friday Night

Low: 24 °F
Mostly Cloudy
Saturday

High: 38 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Partly sunny, with a high near 46. South southwest wind 13 to 17 mph, with gusts as high as 31 mph.
Tonight
A slight chance of showers between 1am and 3am. Mostly cloudy, with a temperature rising to around 46 by 3am. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a temperature falling to around 38 by 5pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph becoming light west northwest after midnight.
Thursday
Mostly cloudy, with a high near 40. Calm wind becoming west southwest around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 34. South wind around 6 mph.
Friday
Mostly sunny, with a high near 50. Southwest wind 6 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 24. North northwest wind 6 to 8 mph.
Saturday
Mostly cloudy, with a high near 38. North wind around 7 mph.
Saturday Night
A slight chance of rain and snow showers before midnight. Mostly cloudy, with a low around 13. North wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 26. North wind 7 to 10 mph.
Sunday Night
Partly cloudy, with a low around 15. North northeast wind around 6 mph becoming calm in the evening.
Monday
A slight chance of showers. Mostly sunny, with a high near 38. Light and variable wind becoming south 5 to 8 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NW Royalton IL
37.92°N 89.16°W
37.92°N 89.16°W
2:11 pm CST Dec 9, 2025
2pm CST Dec 9, 2025-6pm CST Dec 15, 2025



