TONIGHT…Clear. Areas of frost after midnight. Lows in the lower 20s. West winds 5 to 10 mph. MONDAY…Areas of frost in the morning. Sunny. Not as cool with highs around 50. Southwest winds 5 to 10 mph. MONDAY NIGHT…Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. South winds 5 to 10 mph.