Long shot rain chance this weekend

Sunday brings “best” chance at rainfall, most of us stay dry

Justin Horne, KSAT Weather Authority Meteorologist

Published: August 6, 2026 at 4:46 AM

FORECAST HIGHLIGHTS

RINSE & REPEAT: Highs in the upper-90s today, heat index 102-105
SMALL RAIN CHANCE: Friday through Monday, “best” chance Sunday
TROPICS EERILY QUIET: No development expected, another plume of dust

FORECAST

CONTINUED HOT & HUMID

South Texas is in the throes of summer and it shows. Expect hot, humid, and dry conditions today. Highs will be in the upper-90s, while the heat index will peak in the low-100s.

SMALL RAIN CHANCE

Any real trigger for rainfall remains non-existent, but a few airmass, pop-up showers are possible Friday through Monday. Sunday may present a slightly better shot at rainfall, mainly for those east of I-35.

TROPICS: DUSTY AND DRY

The Atlantic remains very quiet, with hardly any tropical activity. Wind shear and a significant plume of dust should keep it that way through mid-August. August is a month in which tropical activity usually picks up, however, this season is expected to be below-average.