textproduct: Houston/Galveston

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- Hot conditions will continue this week, with potential for heat stress issues as heat indices approach 105-107F (41-42C) each day and WBGT risk peaks in the red category.

DISCUSSION

Issued at 105 PM CDT Wed Jun 24 2026

Not too much to write about, as high pressure and upper ridge settle in across the area. The building ridge will keep dry conditions in place through much of the period, with drier air helping to alleviate the higher heat indices we've experiences the last week or so. That said, heat may still be a factor for those spending a lot of times outdoors or those vulnerable to heat, so caution should be used if spending time outdoors. Otherwise, expect highs to warm into the lower to mid 90s and overnight lows in the lower to mid 70s.

Moisture will begin to increase this weekend, as the ridge moves east of the area. Meanwhile, weaknesses in the upper ridge may provide some forcing for convection, if any mesocale features lead to a focus for CI. We'll see an increase in afternoon rain chances, typical of our summertime pattern.

AVIATION

(12Z TAF Issuance) Issued at 522 AM CDT Wed Jun 24 2026

Some MVFR CIGS have filled in early today, generally in areas north/northwest of KIAH, with brief IFR CIGS/decks around KCLL. FLs should improve after sunrise with CIGS scattering/lifting back to VFR conditions. Winds veer south to southwest during the daytime, then become light and variable in the evening after sunset. Another short round of MVFR CIGS may develop again early Thursday morning, generally in that same areas north/northwest of the Houston metro area. The diurnal cycle should continue with those CIGS clearing out later in the morning.

MARINE

Issued at 105 PM CDT Wed Jun 24 2026

Light to moderate southerly flow will prevail through the workweek. Seas will generally run 2 to 4 ft through the workweek increasing to 3 to 5 ft into the weekend.

PRELIMINARY POINT TEMPS/POPS

College Station (CLL) 94 73 94 76 / 0 0 0 0 Houston (IAH) 94 75 93 77 / 0 0 0 0 Galveston (GLS) 88 81 88 82 / 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.

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