A FLASH FLOOD WATCH is in effect for Lee County until 7pm Sunday, Milam, Robertson, Leon Counties until 12am Monday and Austin, Brazos, Burleson, Grimes, Houston, Madison, Montgomery,San Jacinto, Trinity, Walker, Waller, and Washington Counties until 12am Tuesday. Widespread 2" to 4" rain accumulations are possible through Monday, with localized 8" to 11" possible.
On this date, July 8, back in 1939 a record high temperature and low temperature were both set on the same day at Houston Hobby Airport.
The high on July 8th 1939 was 105° while the low was 70°.
This is a diurnal range of 35°. Even today these two records still stand.
Based on current records this has only happened one other time June 20th, 1933 Houston Hobby Airport observed a record high of 99° and a record low of 66°.