Austin is waking up to a steamy start Saturday, with lows near 77°F and air that feels more Gulf Coast than Hill Country. Showers and scattered thunderstorms are on the table through the morning and into the afternoon, and any stronger cell could dump heavy rain that cuts visibility and slows traffic. Expect a sticky commute and plan for extra time on the roads.
Overnight Rain And Flash Flooding Risk
According to the National Weather Service, storms rolling through overnight could produce very heavy rainfall rates, locally in the 2–3 inches per hour range in the strongest cells. That kind of quick deluge raises the risk of isolated flash flooding, especially along and south of the I‑10/US‑90 corridor.
Most spots are expected to see new rainfall amounts of about a tenth to a quarter of an inch overnight, with additional pockets of a quarter to a half inch possible later Saturday where heavier storms set up. Steer clear of standing water and follow any local flood warnings if they are issued.
Heat Returns This Weekend
After the morning storms, the heat is set to punch back in. Saturday’s high should land near 92°F, with heat index values up to about 101°F. Sunday cranks it up another notch, with highs near 95°F and feels-like readings that could push roughly 107°F in the hottest spots.
South winds will increase to around 5–15 mph, with gusts up to 25 mph possible Sunday, which can make outdoor work feel even more draining. Overnight lows stay stuck in the mid to upper 70s, so there will not be much relief after sunset.
What To Expect And How To Stay Safe
Scattered showers and an isolated thunderstorm remain possible this afternoon and again tonight. Any heavy downpour can trigger quick street flooding and sudden drops in visibility, especially in low-lying or poorly drained areas.
For heat relief and a list of cooling centers and public resources, check the City of Austin. Stay hydrated, skip strenuous outdoor activity during the hottest part of the day, and never drive through flooded roadways, no matter how shallow they look.
Forecast details may change as the atmosphere gets active, so keep an eye on local alerts before heading out this afternoon and evening. Check updates from local officials and the National Weather Service for the latest safety notices as conditions evolve.
