NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sat, Aug 15, 2026 at 11:20:18 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	03:55	Partly Cloudy	10	80	76	88	SSE 8	-	30.13
College Station	03:53	Clear	10	79	76	90	SSE 8	-	30.11
Caldwell	03:55	Partly Cloudy	10	78	75	88	SSE 6	-	30.12
Huntsville	03:53	Clear	10	78	75	90	S 7	-	30.12
Navasota	04:15	Clear	10	78	78	100	SSE 5	-	30.10
Brenham	04:15	Partly Cloudy	10	78	76	94	SSE 3	-	30.11
Conroe	03:53	Mostly Clear	10	79	77	93	S 5	-	30.12
Cleveland	04:15	Clear	7				CALM	-	30.13
Liberty	04:15	Mist	4	77	77	100	CALM	-	30.11
Columbus	04:15	Lightning Observed	10	77	76	96	CALM	-	30.12
Spring	03:53	Clear	8	80	78	93	S 5	-	30.11
Houston Intercontinental Aprt	03:53	Mostly Clear	10	82	79	90	S 6	92 [HI]	30.11
Katy/Brookshire	04:15	Clear	7	78	78	100	S 6	-	30.12
Texas Medical Center Heliport	04:15	Partly Cloudy	10	82	78	88	S 6G14	91 [HI]	30.10
Sugar Land	03:53	Clear	10	80	78	93	SSE 5	-	30.11
Houston Hobby Airport	03:53	Mostly Clear	8	81	78	90	SSW 5	-	30.10
Arcola/Sienna	04:15	Mist	2 1/2	78	76	93	CALM	-	30.12
Pearland	03:53	Clear	9	81	78	90	CALM	-	30.12
Ellington Field	23:54	Clear	10	82	78	88	SE 6	91 [HI]	30.09
La Porte	04:15	Clear	10	80	78	94	SSW 5	-	30.12
Wharton	04:15	Clear	7	77	76	96	CALM	-	30.11
Angleton/Lake Jackson	03:53	Mostly Cloudy	9	79	78	97	CALM	-	30.11
Galveston	03:52	Mostly Clear	10	84	78	82	S 10	95 [HI]	30.12
Bay City	04:15	Clear	9	78	78	100	CALM	-	30.06
Palacios	03:53	Mostly Cloudy	9	85	80	85	S 8	99 [HI]	30.09
Rig 20 Miles SE of Matagorda	04:20		9	84	82	94	S 9	100 [HI]	30.14

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