Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
64°F
18°C
| Humidity | 88% |
| Wind Speed | W 3 mph |
| Barometer | 29.76 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 11 Mar 7:45 am CDT |
Extended Forecast for
2 Miles NW Johnston City IL
Today
High: 70 °F⇓
Breezy.
Severe
Thunderstorms
then ShowersTonight

Low: 32 °F
Decreasing
CloudsThursday

High: 55 °F
Sunny
Thursday Night

Low: 42 °F
Partly Cloudy
Friday

High: 63 °F
Mostly Sunny
Friday Night

Low: 38 °F
Partly Cloudy
Saturday

High: 67 °F
Sunny
Saturday Night

Low: 54 °F
Mostly Cloudy
Sunday

High: 70 °F
Showers
Likely and
Breezy
Detailed Forecast
Today
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers after 4pm. Some of the storms could be severe. Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 17 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 55. Northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. South wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 38. West northwest wind around 6 mph becoming light and variable.
Saturday
Sunny, with a high near 67. East wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 54. South wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 16 to 24 mph, with gusts as high as 33 mph.
Sunday Night
A chance of showers before 1am. Mostly cloudy, with a low around 28. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 41. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 21. North northwest wind 5 to 11 mph.
Tuesday
Partly sunny, with a high near 44. West northwest wind 5 to 9 mph becoming southwest in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles NW Johnston City IL
37.85°N 88.94°W
37.85°N 88.94°W
7:36 am CDT Mar 11, 2026
8am CDT Mar 11, 2026-6pm CDT Mar 17, 2026



