NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Thu, Aug 13, 2026 at 11:18:43 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	10:55	Partly Cloudy	10	89	75	62	SSW 8G16	99 [HI]	30.03
College Station	10:53	Mostly Cloudy	10	90	74	59	SSW 14G23	99 [HI]	30.01
Caldwell	10:55	Mostly Cloudy	10	87	73	62	SSW 13G20	94 [HI]	30.02
Huntsville	10:53	Partly Cloudy	10	90	75	61	S 15	101 [HI]	30.03
Navasota	10:55	Partly Cloudy	10	92	81	70	S 14	111 [HI]	30.00
Brenham	10:55	Mostly Cloudy	10	88	73	61	SSW 13G18	96 [HI]	30.02
Conroe	10:53	Partly Cloudy	10	89	75	63	SW 9G21	99 [HI]	30.03
Cleveland	10:55	Mostly Cloudy	10				SSW 8	-	30.05
Liberty	10:55	Partly Cloudy	10	89	78	70	S 12	103 [HI]	30.02
Columbus	10:55	Partly Cloudy	10	91	74	57	SSE 12G17	102 [HI]	30.02
Spring	10:53	Mostly Clear	8	89	77	67	S 10G18	102 [HI]	30.02
Houston Intercontinental Aprt	10:53	Partly Cloudy	10	90	75	61	S 9	101 [HI]	30.02
Katy/Brookshire	10:55	Mostly Cloudy	8	91	77	62	SSW 16	105 [HI]	30.03
Texas Medical Center Heliport	10:55	Partly Cloudy	10	87	75	66	S 15G22	96 [HI]	30.02
Sugar Land	09:53	Partly Cloudy	10	88	78	72	S 9G21	102 [HI]	30.01
Houston Hobby Airport	10:53	Partly Cloudy	10	90	76	63	S 13G23	102 [HI]	30.02
Arcola/Sienna	10:55	Mostly Cloudy	10	91	76	60	S 6	103 [HI]	30.04
Pearland	10:53	Mostly Clear	9	89	75	63	S 8	99 [HI]	30.04
Ellington Field	10:54	Partly Cloudy	10	89	77	66	SSE 14G21	102 [HI]	30.01
La Porte	10:55	Partly Cloudy	10	89	77	66	S 12G17	102 [HI]	30.04
Wharton	10:55	Mostly Cloudy	10	91	75	59	S 13G22	102 [HI]	30.02
Angleton/Lake Jackson	10:53	Partly Cloudy	10	89	76	65	S 15	100 [HI]	30.03
Galveston	10:52	Partly Cloudy	10	90	77	65	S 16	103 [HI]	30.04
Bay City	10:55	Mostly Clear	10	90	78	68	S 16	106 [HI]	29.99
Palacios	10:53	Mostly Clear	7	89	79	72	S 16G23	105 [HI]	30.01
Rig 20 Miles SE of Matagorda	11:00		9	87	82	84	S 10	106 [HI]	30.07

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