Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
66°F
19°C
| Humidity | 35% |
| Wind Speed | Vrbl 6 mph |
| Barometer | 30.40 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 2:45 pm CDT |
Extended Forecast for
Johnston City IL
This Afternoon
High: 68 °F
Sunny
Tonight
Low: 39 °F
Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 45 °F
Clear
Thursday
High: 76 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 68. Southeast wind around 6 mph.
Tonight
Clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 73. Light south wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 75. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 45. Calm wind.
Wednesday
Sunny, with a high near 77. Calm wind.
Wednesday Night
Clear, with a low around 45. Calm wind.
Thursday
Sunny, with a high near 76. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 47. Calm wind.
Friday
Sunny, with a high near 76. Calm wind becoming east 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 47. Light east wind.
Saturday
Sunny, with a high near 79. Calm wind becoming south southeast around 6 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Johnston City IL
37.82°N 88.91°W
37.82°N 88.91°W
1:26 pm CDT Oct 18, 2026
3pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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