After a brief taste of spring on Saturday, conditions will deteriorate on Sunday from the mid-Mississippi River Valley to the mid-Atlantic. A cold front will usher in unseasonably cold temperatures while a storm gathers strength in the Southeast and East Coast. This will bring a chance of late-season snow, particularly for the central Appalachians and mid-Atlantic.
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• Today: Partly sunny. Highs in the upper 30s. South winds 5 to 15 mph increasing to 15 to 20 mph in the after

noon.
• Tonight: Not as cold. Mostly cloudy. Lows around 30. South winds 15 to 20 mph shifting to the southwest 5 to 15 mph after midnight.
• Monday: Not as cool. Mostly cloudy. A 20 percent chance of light snow in the morning. Highs in the upper 50s. South winds 5 to 15 mph.
• Monday Night: Mostly cloudy. A chance of light rain in the evening...then light rain...possibly mixed with snow and sleet after midnight. Accumulations possible. Lows in the lower 30s. East winds 10 to 15 mph shifting to the northeast 10 to 20 mph after midnight.
• Tuesday: Windy...colder. Light snow. Accumulations possible. Highs in the mid 30s. Temperature steady or slowly falling in the afternoon. North winds 20 to 30 mph.
• Tuesday Night: Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of light snow. Lows in the lower 20s.
• Wednesday And Wednesday Night: Partly cloudy. Highs in the upper 30s. Lows in the mid 20s.
• Thursday: Partly sunny. Highs in the upper 40s.
• Thursday Night: Partly cloudy with a 20 percent chance of light snow. Lows in the upper 20s.