NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sat, Aug 15, 2026 at 3:36:30 am CDT

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Heat Advisory

Today

Sunday

Stay Safe From The Heat

WBGT Forecast

The Outlook Ahead

Hot weather is expected today with highs in the 90s to triple digits. Heat indices will range from 104-110 degrees. With these hot conditions, remember to stay hydrated and take breaks indoors to cool off.

Hot weather is expected on Sunday with highs in the 90s to triple digits. Heat indices will range from 101-107 degrees. 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 83-91 through the weekend. 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 102-111 degrees. While most areas will remain dry, there is a possibility of isolated to scattered showers and storms forming along the sea breeze each day. 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	02:55	Clear	10	80	75	84	S 8	-	30.14
College Station	02:53	Clear	10	79	75	87	S 7	-	30.12
Caldwell	02:35	Clear	10	78	75	88	S 6	-	30.13
Huntsville	02:53	Clear	10	79	75	87	SSE 7	-	30.13
Navasota	02:55	Clear	10	78	78	100	SSE 6	-	30.11
Brenham	03:15	Clear	10	77	75	93	CALM	-	30.12
Conroe	02:53	Mostly Clear	10	77	76	96	SE 3	-	30.13
Cleveland	03:15	Clear	10				CALM	-	30.13
Liberty	03:15	Clear	8	77	77	100	CALM	-	30.11
Columbus	03:15	Partly Cloudy	10	78	76	94	CALM	-	30.13
Spring	02:53	Partly Cloudy	8	80	78	93	SSE 3	-	30.12
Houston Intercontinental Aprt	02:53	Mostly Clear	10	82	79	90	S 5	92 [HI]	30.12
Katy/Brookshire	03:15	Clear	7	80	78	94	S 6	-	30.13
Texas Medical Center Heliport	03:15	Partly Cloudy	10	82	78	88	S 10	91 [HI]	30.11
Sugar Land	02:53	Mostly Clear	10	80	78	93	S 6	-	30.12
Houston Hobby Airport	02:53	Mostly Clear	10	82	79	90	SSE 5	92 [HI]	30.12
Arcola/Sienna	03:15	Mist	5	78	76	93	CALM	-	30.14
Pearland	02:53	Clear	9	82	78	87	SSE 3	91 [HI]	30.14
Ellington Field	23:54	Clear	10	82	78	88	SE 6	91 [HI]	30.09
La Porte	02:55	Partly Cloudy	10	82	78	88	SSW 6	91 [HI]	30.13
Wharton	03:15	Clear	7	77	76	95	ESE 3	-	30.13
Angleton/Lake Jackson	02:53	Clear	10	81	78	90	SSW 3	-	30.12
Galveston	02:52	Mostly Clear	10	85	78	80	S 10	97 [HI]	30.12
Bay City	03:15	Mostly Clear	10	80	80	100	SSE 3	-	30.08
Palacios	02:53	Mostly Clear	9	85	79	82	S 10	98 [HI]	30.10
Rig 20 Miles SE of Matagorda	03:20		9	84	82	94	S 10	100 [HI]	30.15

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