After a delightful morning, ozone pollution is possible in Houston Wednesday

Wednesday, May 13, 2026 10:57AM
After a delightful Wednesday morning, ozone pollution is possible

HOUSTON, Texas (KTRK) -- Take advantage of this humidity drop while we've got it, because a major moisture surge is coming in this weekend. Ahead of the weekend, warm afternoons could help increase ozone pollution problems, too.

Temperatures Wednesday morning will fall back into the low-to-mid 60s, and there could be a touch of fog, especially southwest of Houston.

Abundant sunshine throughout the day will boost high temperatures toward 90-degrees. With light and variable winds, ozone pollution problems could pop up in Houston-area neighborhoods. Ozone is a lung irritant that can trigger asthma attacks and dry coughs in sensitive individuals.

Are there any other days with ozone problems expected this week?

Thursday could be another day with unhealthy levels of ozone pollution, but the Gulf breeze will start to kick in helping to clean up the air for the rest of the week.

When does the moisture surge back in?

You'll really feel the humidity going up this weekend as a strong Gulf breeze kicks in. The rise in moisture levels will also increase rain chances to 20% Saturday and 30% Sunday.

I hear a bigger rainmaker is coming next week. What's the latest on that?

We are eyeing an upper level storm to impact us Monday through Wednesday of next week that could bring more widespread rain to Southeast Texas. There are also signs that a weak front could slide underneath it, which could enhance rain totals even more. Details are sketchy at this time, but we'll keep you posted! For now we have rain chances at 40% all three of those days.

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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