NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Thu, Aug 13, 2026 at 8:50:29 am CDT

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Heat Advisory

Today

Friday

Stay Safe From The Heat

WBGT Forecast

The Outlook Ahead

Hot weather is expected today with highs in the 90s, nearing triple digits. Heat indices will range from 102-111 degrees. 20% Chance for showers in the afternoon. With these hot conditions, remember to stay hydrated and take breaks indoors to cool off.

Hot weather is expected on Friday with highs in the 90s, nearing triple digits. Heat indices will range from 102-112 degrees. There is a 20-30% chance for showers and thunderstorms in the afternoon. With these hot conditions, remember to stay hydrated and take breaks indoors to cool off.

Practice HEAT SAFETY Wherever You Are. Heat related deaths are preventable. Protect yourself and others from the impacts of heat waves. Job Sites: Stay hydrated and take breaks in the shade as often as possible. Indoors: Check up on the elderly, sick and those without AC. Vehicles: Never leave kids or pets unattended - LOOK before you LOCK. Outdoors: Limit strenuous outdoor activities, find shade, and stay hydrated. weather.gov/heat

Afternoon WBGT values are forecasted to range from 85-91 today and Friday. Extreme values of 90 or more are possible in some locations between 1-4 pm.

Hot and humid conditions continue with high temperatures in the 90s to triple digits. Max Heat indices are expected to reach 102-110 degrees. While most areas will remain dry, there is a possibility of isolated showers and storms forming along the sea breeze each day, especially on Friday. Please practice heat safety by checking on the elderly, children, and pets, staying cool and hydrated, and wearing light-weight, light-colored clothing.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	08:35	Overcast	10	80	76	85	S 6	-	30.03
College Station	08:17	Mostly Cloudy	10	79	76	90	S 6	-	30.00
Caldwell	08:35	Overcast	10	80	75	83	SSW 9G16	-	30.02
Huntsville	07:53	Clear	10	80	76	87	SSW 8	-	30.01
Navasota	08:35	Clear	10	80	80	100	S 6	-	30.00
Brenham	08:35	Mostly Cloudy	10	80	76	88	S 8	-	30.00
Conroe	06:53	Clear	10	79	76	90	S 6	-	29.99
Cleveland	08:35	Clear	10				S 5	-	30.03
Liberty	08:35	Clear	10	80	78	94	CALM	-	30.00
Columbus	08:35	Clear	10	82	78	86	S 6	-	30.00
Spring	07:53	Clear	7	80	77	90	S 7	-	30.00
Houston Intercontinental Aprt	07:53	Clear	10	82	77	84	S 7	-	30.00
Katy/Brookshire	08:35	Clear	8	84	78	83	SSW 8	95 [HI]	30.02
Texas Medical Center Heliport	08:35	Clear	10	82	77	83	S 13	-	29.99
Sugar Land	07:53	Clear	10	81	77	87	S 7	-	29.99
Houston Hobby Airport	07:53	Clear	10	82	76	81	S 9	-	29.99
Arcola/Sienna	08:35	Clear	10	83	76	78	S 6	92 [HI]	30.01
Pearland	07:53	Clear	9	81	76	84	S 6	-	30.01
Ellington Field	07:54	Mostly Clear	10	80	77	88	SSE 6	-	29.98
La Porte	08:35	Clear	10	84	77	79	SSW 9	94 [HI]	30.01
Wharton	08:35	Clear	10	83	78	84	SSE 7	93 [HI]	30.01
Angleton/Lake Jackson	07:53	Clear	10	82	78	87	S 6	91 [HI]	29.99
Galveston	07:52	Mostly Clear	10	86	77	74	S 13	97 [HI]	30.00
Bay City	08:35	Clear	10	86	82	88	SSE 13G18	103 [HI]	29.96
Palacios	08:37	Partly Cloudy	8	87	78	74	S 15	100 [HI]	29.98
Rig 20 Miles SE of Matagorda	08:40		10	86	80	84	SSE 12	101 [HI]	30.04

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