Heavy rainfall could cause problems with localized flooding, especially east of Interstate 45 through Wednesday evening. This map shows forecast rain totals through Wednesday, with the highest totals expected across parts of Liberty, San Jacinto and Polk counties.
Pivotal Weather
Tropical Storm Edouard’s landfall near Sabine Pass will bring another day of heavy rainfall to the Houston area Wednesday, with flooding remaining the biggest concern.
The storm’s circulation will slowly move north through the day, spreading rain bands across the region and toward the Interstate 45 corridor. While the heavy rainfall will get the most attention, a few storms also could produce frequent lightning, gusty winds and locally intense downpours.
Edouard keeps Houston’s rain chances high Wednesday
As Edouard’s remnants move north Wednesday, several rounds of rain will spread across Southeast Texas.
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The most widespread rain is expected near and north of Interstate 10, while areas farther south, including Galveston, League City and Friendswood, are more likely to see brief, hit-or-miss downpours.
The heaviest rainfall from Tuesday through Wednesday is expected near the upper Texas coast and east of Interstate 45, where some areas could receive 3 to 6 inches. Totals will vary sharply across the region, with many Houston neighborhoods likely seeing closer to a half-inch or an inch of rain.
Michael Espinoza stands under the awning of his shop, T&M Bait Shop, watching rain from Tropical Storm Edouard come down in High Island, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
A fisherman who goes by the name “Jellybean” casts his line along the ship channel before landfall of Tropical Storm Edouard in Galveston, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
Dark clouds hand low over the horizon as Tropical Storm Edouard makes its way towards landfall in Galveston, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
Surfers try to catch a wave in surf stirred up by Tropical Storm Edouard in Galveston, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
TXDOT signs on I-610 as Tropical Storm Edouard makes landfall in Houston on Tuesday, Sept. 1, 2026.
Elizabeth Conley/Houston Chronicle
Oil and natural gas facilities are seen along the Houston Ship Channel as Tropical Storm Edouard makes its way through Greater Houston, Tuesday, Sept. 1, 2026.
Jason Fochtman/Houston Chronicle
Oil and natural gas facilities are seen along the Houston Ship Channel as Tropical Storm Edouard makes its way through Greater Houston, Tuesday, Sept. 1, 2026.
Jason Fochtman/Houston Chronicle
Fishermen cast their lines in surf stirred up by Tropical Storm Edouard in Galveston, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
A surfer tries to catch a wave in surf stirred up by Tropical Storm Edouard in Galveston, Tuesday, Sept. 1, 2026.
Brett Coomer/Houston Chronicle
TXDOT signs on I-610 as Tropical Storm Edouard makes landfall in Houston on Tuesday, Sept. 1, 2026.
Elizabeth Conley/Houston Chronicle
Wind gusts could reach 30 to 40 mph, especially near heavier rain bands. A few strong storms also could develop during the afternoon and evening, when daytime heating increases the potential for gusty winds and frequent lightning.
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PEAK MONTH: After Edouard, the Atlantic is quiet ahead of September’s usual surge. Here’s why Texas still faces a risk.
Rain coverage should gradually decrease from south to north late Wednesday evening and overnight as the remnants continue moving away.
Flood risk continues across Southeast Texas
The greatest concern will be for locations where rain bands repeatedly move over the same area. This “training” effect could produce isolated rainfall totals of more than 10 inches, particularly along a narrow corridor from Liberty north toward Huntsville.
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Even areas that avoid the heaviest rain could see rapidly rising water on streets, in low-lying locations and in places with poor drainage. Travel conditions may deteriorate at times Wednesday, especially during the afternoon and evening.
The flood threat will not end immediately when the heaviest rain moves out. Saturated ground and swollen waterways could continue causing problems into Thursday.
Heat and daily storm chances return this weekend
Scattered afternoon storms will remain possible Thursday as Edouard’s remnants move into North Texas. Rain chances will then decrease Friday and through the weekend as a ridge of high pressure builds across the region.
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That pattern change will bring back more typical late-summer heat, with temperatures gradually climbing into the mid- and upper 90s. Humidity-driven heat index values could approach 105 degrees during the weekend.
Daily storms will not disappear completely. Strong heating and the sea breeze should continue producing isolated to scattered afternoon downpours, with the best chances near the coast. Most inland neighborhoods, however, will trend hotter and drier than they were during Edouard’s slow departure.