TONIGHT…Partly cloudy this evening, then clearing. Widespread frost after midnight. Lows in the lower 30s. West winds 5 to 10 mph. MONDAY…Widespread frost in the morning. Sunny. Highs in the mid 50s. Northwest winds 5 to 10 mph. MONDAY NIGHT…Mostly clear in the evening, then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. North winds 5 to 10 mph, becoming southeast after midnight.