Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
70°F
21°C
| Humidity | 98% |
| Wind Speed | SW 5 mph |
| Barometer | 29.73 in |
| Dewpoint | 69°F (21°C) |
| Visibility | 10.00 mi |
| Last update | 1 Aug 3:55 am CDT |
Extended Forecast for
2 Miles ENE Johnston City IL
Overnight
Low: 71 °F
Chance
ShowersSaturday
High: 80 °F
Slight Chance
T-stormsSaturday Night
Low: 67 °F
Chance
ShowersSunday
High: 81 °F
Showers
LikelySunday Night
Low: 66 °F
Partly Cloudy
Monday
High: 84 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 67 °F
Mostly Clear
Detailed Forecast
Overnight
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 71. South southwest wind around 6 mph.
Saturday
A slight chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. West wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Saturday Night
A 50 percent chance of showers, mainly before 5am. Mostly cloudy, with a low around 67. West wind 7 to 10 mph.
Sunday
Showers likely before 1pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. North northwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 66. North wind 6 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 84. North wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 67. Calm wind.
Wednesday
Sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 70. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest wind 3 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Johnston City IL
37.82°N 88.89°W
37.82°N 88.89°W
3:51 am CDT Aug 1, 2026
4am CDT Aug 1, 2026-6pm CDT Aug 7, 2026
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