Stormy start to Father's Day with street flooding possible

Sunday, June 21, 2026 12:36PM
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HOUSTON, Texas (KTRK) -- We are starting off Father's Day with a round of thunderstorms blowing in from the southwest, but looking ahead to the work week, drier and hotter conditions are on the way.

Tropical moisture blowing in from the Gulf has kicked off another round of thunderstorms, triggering Flash Flood Warnings south and west of Houston. Street flooding from heavy rain and lightning are the primary concerns with these storms, but gusty winds over 50 mph and waterspouts are also possible near the coast. A quick 1-3" of rain is possible in the heaviest storms. The initial round of storms should clear out of Houston before noon, but additional pockets of rain are possible during the afternoon in the steamy air. Temperatures will hover in the 70s when it is raining but eventually rebound into the upper 80s where the sun comes out. Factor in the humidity, and it will feel closer to 100 degrees during the peak heat of the day.

Another round of scattered storms is kicking off our Father's Day, but a drier weather pattern sets in for the work week.

What's the outlook for work week?

This week is the first official week of summer, and it's surely going to feel like it! A heat dome will set up over west Texas that will also keep Southeast Texas hot with morning lows starting in the mid-upper 70s and afternoon highs climbing into the low-mid 90s. Humidity levels will remain high enough that some days could have Heat Advisories with a heat index of 108 or hotter.

So, how much rain did the Houston area pick up this past week?

Checking local rain gauges and rainfall estimates from 13 Alert Radar, much of Houston and Harris County picked up between 3 to 7 inches of rain this past week. Some communities saw over 9 inches of rain too. Farther south, some of the highest totals come from Brazoria and Galveston counties with over a foot of rain falling near Seabrook.

What are you tracking in the tropics?

The tropics are quiet for now. Tropical development is not expected during the next 7 days. Get the latest track and how much rainfall we can expect in our tropical update Tropical Update page for our daily tropical weather discussion and forecast.

13 ALERT RADAR MAPS:
Southeast Texas
Houston
Harris County
Galveston County
Montgomery/Walker/San Jacinto/Polk/Grimes Counties
Fort Bend/Wharton/Colorado Counties
Brazoria/Matagorda Counties

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