When the rain is forecast to begin

AUSTIN (KXAN) -- The day dawned with sunshine and cold air as most lows fell to the mid/upper 30s to low 40s. Camp Mabry's low was 43°, three degrees below normal. The airport was colder at sunrise with its low of 37°, five below.The air is warming quickly thanks to the dry air and the light wind. Most highs this afternoon will rise to the upper half of the 60s. A few locations should make 70°.Today's normal high is 67°Lows tomorrow morning drop to the upper 30s to low 40s. An ov