



Strong Storm to Move Onto the Plains and East This Week
A powerful storm will track across the Southwest with additional heavy precipitation and strong winds. This storm will track into the Plains and evolve into a heavy rainfall and severe weather threat from the Ohio Valley into the Mid-Mississippi Valley Thursday into Friday. The next system is forecast to arrive for the Pacific Northwest this week and into the weekend with wind, rain and snow. Read More >
Hazardous Weather Conditions

Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33° N Lon: 88.85° W Elev: 466 ft.
Overcast
55°F
13°C
Humidity | 90% |
Wind Speed | S 15 mph |
Barometer | 30.05 in (1017.9 mb) |
Dewpoint | 52°F (11°C) |
Visibility | 10.00 mi |
Wind Chill | 51°F (11°C) |
Last update | 22 Mar 11:56 am CDT |
Detailed forecast for
Marion County
Today
Cloudy. A chance of rain, mainly this morning. Not as cool with highs around 60. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.
Tonight
Cloudy. Patchy fog in the evening. A chance of showers and thunderstorms, mainly in the evening. Not as cool with lows in the upper 50s. South winds 10 to 15 mph with gusts up to 35 mph. Chance of rain 40 percent.
Thursday
Cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Not as cool with highs in the lower 70s. Temperature falling into the mid 60s in the afternoon. Southwest winds 10 to 15 mph with gusts up to 35 mph. Chance of rain 80 percent.
Thursday Night
Showers with a chance of thunderstorms. Locally heavy rainfall possible. Cooler. Less humid with lows in the mid 40s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.
Friday
Showers with a slight chance of thunderstorms. Much cooler with highs in the mid 50s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.
Friday Night
Showers with a slight chance of thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the mid 40s. Chance of rain near 100 percent.
Saturday
Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 50s.
Saturday Night
Mostly clear. Lows in the upper 30s.
Sunday
Mostly sunny. A slight chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 20 percent.
Sunday Night
Mostly cloudy with a 40 percent chance of showers. Lows in the lower 40s.
Monday And Monday Night
Mostly cloudy. A 20 percent chance of showers. Highs in the mid 50s. Lows in the upper 30s.
Tuesday
Mostly sunny. Highs in the lower 50s.
Additional Forecasts and Information
Click Map For Forecast