TONIGHT…Partly cloudy. A chance of flurries this evening. Cold with lows around 20. Northwest winds 10 to 15 mph. SUNDAY…Mostly sunny. Highs in the upper 30s. Northwest winds around 10 mph. SUNDAY NIGHT…Clear. Widespread frost after midnight. Lows in the lower 20s. West winds 5 to 10 mph, becoming southwest after midnight.