The heavy rain also created problems during rush hour.
Avent Ferry Road in Holly Springs was under water, while Piney Grove and Wilbon Road was partly under water well into Tuesday night.
Flash flooding also caused problems in Durham.
Firefighters had to block off an intersection near the Parkwood neighborhood. The storm apparently knocked out power to street lights and to dozens of homes.
The Triangle area has been lucky compared to other parts of the Southeast that have seen nearly a foot of rain and heavy flooding.
Meteorologist Glenn Willey says moisture will remain over the region for the next few days with summerlike heat building into the region. With some sunshine, temperatures by Thursday will soar into the upper 80s to near 90.
A cold front will slip into the region Friday and usher in some cooler air for the weekend. By Saturday, highs will only reach the mid and upper 70s. Saturday looks dry, but showers and storms are likely by Sunday.