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Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
77°F
25°C
| Humidity | 66% |
| Wind Speed | S 6 mph |
| Barometer | 29.93 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 20 Jun 9:15 pm CDT |
Extended Forecast for
2 Miles NW Johnston City IL
Tonight
Low: 67 °F
Mostly Clear
Sunday
High: 88 °F
Chance
T-storms then
Showers
Likely and
BreezySunday Night
Low: 71 °F
T-storms then
ShowersMonday
High: 81 °F
Showers
LikelyMonday Night
Low: 63 °F
Partly Cloudy
Tuesday
High: 82 °F
Mostly Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 85 °F
Mostly Sunny
Wednesday Night
Low: 64 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 67. Light and variable wind.
Sunday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 88. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 71. Southwest wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
Monday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly cloudy, with a high near 81. West southwest wind around 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 63. North wind 5 to 10 mph becoming light in the evening.
Tuesday
Mostly sunny, with a high near 82. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. Light and variable wind.
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 64. North wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Light south wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. South southwest wind 5 to 10 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NW Johnston City IL
37.85°N 88.94°W
37.85°N 88.94°W
9:31 pm CDT Jun 20, 2026
9pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
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