Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Mostly Cloudy
28°F
-2°C
| Humidity | 74% |
| Wind Speed | N 8 mph |
| Barometer | 30.28 in |
| Dewpoint | 21°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 20°F (-7°C) |
| Last update | 3 Feb 11:35 pm CST |
Extended Forecast for
Johnston City IL
Tonight

Low: 23 °F
Mostly Cloudy
Wednesday

High: 31 °F
Partly Sunny
Wednesday Night

Low: 14 °F
Partly Cloudy
Thursday

High: 36 °F
Partly Sunny
Thursday Night

Low: 30 °F
Mostly Clear
Friday

High: 51 °F
Sunny
Friday Night

Low: 26 °F
Mostly Clear
Saturday

High: 41 °F
Sunny
Saturday Night

Low: 28 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 23. North wind around 7 mph.
Wednesday
Partly sunny, with a high near 31. North wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 14. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 36. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 30. West southwest wind 6 to 9 mph.
Friday
Sunny, with a high near 51. West southwest wind 6 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 26. North northwest wind around 6 mph.
Saturday
Sunny, with a high near 41. North northeast wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 28. South southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 49. South southeast wind 5 to 7 mph becoming northeast in the afternoon.
Sunday Night
Partly cloudy, with a low around 26. Light northeast wind.
Monday
Mostly sunny, with a high near 47. Light and variable wind becoming east around 5 mph.
Monday Night
Mostly cloudy, with a low around 34. Light and variable wind becoming south around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 55. South wind 5 to 8 mph.
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ABOUT THIS FORECAST
Point Forecast:
Johnston City IL
37.82°N 88.91°W
37.82°N 88.91°W
11:22 pm CST Feb 3, 2026
11pm CST Feb 3, 2026-6pm CST Feb 10, 2026



