Mount Vernon Hourly Forecast

Showers and scattered thunderstorms late this evening, then showers and numerous thunderstorms. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible late this evening. Lows in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Mostly cloudy with scattered showers with isolated thunderstorms in the morning, then partly sunny in the afternoon. Highs in the mid 60s. South winds 10 to 15 mph, becoming west in the afternoon. Chance of rain 40 percent.

Partly cloudy in the evening, then becoming mostly clear. Much cooler with lows in the lower 40s. West winds around 5 mph, becoming east after midnight.

Sunny. Highs in the mid 60s. East winds around 5 mph.