TONIGHT…Mostly cloudy. Lows in the lower 20s. Northeast winds around 5 mph, becoming west after midnight. THURSDAY…Mostly sunny in the morning, then becoming mostly cloudy. Not as cool with highs in the lower 40s. Southwest winds 5 to 10 mph. THURSDAY NIGHT…Partly cloudy. Cold with lows around 20. West winds 5 to 10 mph, becoming north 10 to 15 mph after midnight.