Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Whiteash IL
Flood Watch until March 5, 12:00pm
NOW until 12:00pm Thu

Flood Watch
Overnight

Low: 59 °F
Heavy Rain
and Patchy
FogThursday
High: 72 °F
Showers and
Patchy Fog
then Chance
T-stormsThursday Night
Low: 60 °F
Chance
T-storms then
Chance
Showers and
Patchy FogFriday
High: 78 °F
Partly Sunny
then Chance
ShowersFriday Night
Low: 62 °F
Mostly Cloudy
then Showers
LikelySaturday
High: 72 °F
Showers then
Chance
ShowersSaturday Night
Low: 43 °F
Slight Chance
Showers then
Partly CloudySunday

High: 64 °F
Mostly Sunny
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Low around 59. Calm wind becoming south southeast 5 to 7 mph. Chance of precipitation is 100%.
Thursday
Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. High near 72. South southeast wind 7 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly between midnight and 3am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 60. Southwest wind 5 to 8 mph becoming south southeast in the evening.
Friday
A 30 percent chance of showers after noon. Partly sunny, with a high near 78. South wind 9 to 17 mph, with gusts as high as 26 mph.
Friday Night
Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 62. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm. High near 72. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%.
Saturday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43. Northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 64. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 47. Calm wind becoming south southwest around 5 mph after midnight.
Monday
Sunny, with a high near 73. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 76. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 57. South southwest wind 15 to 17 mph, with gusts as high as 28 mph.
Wednesday
Showers. Mostly cloudy, with a high near 65. Southwest wind around 17 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.
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ABOUT THIS FORECAST
Point Forecast:
Whiteash IL
37.78°N 88.92°W
37.78°N 88.92°W
3:51 am CST Mar 5, 2026
3am CST Mar 5, 2026-6pm CDT Mar 11, 2026



