TONIGHT…Partly cloudy with a chance of sprinkles this evening, then mostly clear after midnight. Areas of frost after midnight. Cooler with lows in the lower 30s. West winds 10 to 15 mph. Gusts up to 30 mph this evening. SUNDAY…Sunny in the morning, then becoming partly sunny. Areas of frost in the morning. Highs in the mid 50s. West winds 5 to 10 mph. SUNDAY NIGHT…Partly cloudy in the evening, then clearing. Widespread frost after midnight. Lows in the lower 30s. Northwest winds 5 to 10 mph.