Jefferson- Including the city of Mount Vernon 1145 PM CDT Tue Apr 23 2024 .TONIGHT...Partly cloudy. Lows in the mid 40s. West winds around 5 mph. .WEDNESDAY...Sunny. Highs in the upper 60s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the upper 60s. East winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. East winds 10 to 15 mph. Chance of rain 50 percent. .FRIDAY AND FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Breezy. Highs in the mid 70s. Lows in the mid 60s. Chance of rain 70 percent. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms. Breezy. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 40 percent. .SUNDAY...Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Breezy with highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT AND MONDAY...Showers likely with a chance of thunderstorms. Breezy. Lows in the lower 60s. Highs in the mid 70s. Chance of rain 70 percent. .MONDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the mid 50s. Chance of rain 50 percent. .TUESDAY...Mostly sunny. Highs in the mid 70s. $$