Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
25°F
-4°C
| Humidity | 72% |
| Wind Speed | S 5 mph |
| Barometer | 30.47 in |
| Dewpoint | 17°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 12 Jan 1:15 am CST |
Extended Forecast for
3 Miles ENE Johnston City IL
Overnight
Low: 23 °F
Clear
Monday
High: 51 °F
Sunny
Monday Night
Low: 34 °F
Mostly Clear
Tuesday
High: 59 °F
Sunny
Tuesday Night
Low: 40 °F
Chance
ShowersWednesday
High: 45 °F
Slight Chance
Showers then
Mostly Cloudy
and BreezyWednesday Night
Low: 19 °F
Mostly Cloudy
and Blustery
then Mostly
CloudyThursday
High: 32 °F
Sunny
Thursday Night
Low: 23 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 23. South wind 3 to 6 mph.
Monday
Sunny, with a high near 51. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 34. South southwest wind 7 to 10 mph.
Tuesday
Sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Wednesday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. Breezy, with a northwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 32. North northwest wind 6 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 23. West wind 5 to 10 mph becoming south southwest in the evening. Winds could gust as high as 18 mph.
Friday
Partly sunny, with a high near 44. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
Mostly cloudy, with a low around 22. West wind 7 to 10 mph.
Saturday
Partly sunny, with a high near 33. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. West northwest wind 8 to 10 mph.
Sunday
Sunny, with a high near 29. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Johnston City IL
37.82°N 88.86°W
37.82°N 88.86°W
1:17 am CST Jan 12, 2026
1am CST Jan 12, 2026-6pm CST Jan 18, 2026
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