NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Tue, Jul 21, 2026 at 3:06:42 pm CDT

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Extreme Heat Warning

Heat Advisory

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Dangerous Heat this Week

Extreme Heat Warning

Tropical Storm Bertha

Today

Tonight

Very hot and humid conditions are expected on Tuesday with highs in the upper 90s to near 100F. Peak heat indices around 108F. A Heat Advisory is in effect for all of Southeast Texas from 11 am to 8 pm Tuesday. Be sure to practive heat safety whereever you are.

An Extreme Heat Warning is in effect from 11AM to 8PM on Wednesday as dangerously hot conditions are expected with high temperatures between 99 and 104 and heat index values up to 115.

Tropical Storm Bertha is currently drifting northwestward in the eastern Gulf, with maximum sustained wind speeds of 60 mph. The system is expected to turn west, tracking towards our area later in the week. However, increasing wind shear, dry air, and land interaction with Louisiana are expected to limit Bertha's organization as it approaches southeast Texas. That being said, it is advised that you keep updated with the latest updates in case trends change.

It is going to be a hot and sunny day across Southeast Texas. Highs will range from 95-101°F, with heat indices climbing above 100°F. Remember to stay hydrated, take breaks in the air conditioning, and check on family, friends, and pets.

Tonight's forecast: Expect mild and humid conditions with partly cloudy skies. Overnight lows will range from 75–81°F.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	14:15	Clear	10	94	70	45	CALM	101 [HI]	29.94
College Station	13:53	Clear	10	94	72	49	VRB 3	102 [HI]	29.93
Caldwell	14:15	Clear	10	96	68	39	NNE 5	101 [HI]	29.94
Huntsville	13:53	Clear	10	94	71	47	VRB 3	101 [HI]	29.93
Navasota	14:35	Mostly Clear	10	96	73	47	WNW 6	106 [HI]	29.89
Brenham	14:35	Clear	10	95	68	42	NW 3	99 [HI]	29.91
Conroe	13:53	Clear	10	94	70	45	VRB 6	100 [HI]	29.92
Cleveland	14:35	Clear	10				WNW 5	-	29.91
Liberty	14:35	Clear	10	93	75	56	VRB 5	105 [HI]	29.88
Columbus	14:35	Clear	10	95	68	42	CALM	100 [HI]	29.92
Spring	13:53	Clear	8	94	69	44	WNW 6	99 [HI]	29.92
Houston Intercontinental Aprt	13:53	Partly Cloudy	10	95	68	41	W 7	100 [HI]	29.91
Katy/Brookshire	14:35	Clear	9	95	69	44	CALM	101 [HI]	29.92
Texas Medical Center Heliport	14:35	Clear	10	95	64	36	NW 9	97 [HI]	29.89
Sugar Land	13:53	Clear	10	93	72	50	VRB 5	101 [HI]	29.92
Houston Hobby Airport	13:53	Mostly Clear	10	93	69	45	WSW 9	98 [HI]	29.90
Arcola/Sienna	14:35	Clear	10	94	70	45	WNW 6	100 [HI]	29.91
Pearland	13:53	Clear	10	92	69	47	VRB 6	97 [HI]	29.93
Ellington Field	13:54	Clear	10	95	68	41	WNW 6	100 [HI]	29.90
La Porte	14:35	Clear	10	95	66	39	W 6	98 [HI]	29.90
Angleton/Lake Jackson	13:53	Clear	10	92	74	55	WNW 5	102 [HI]	29.92
Galveston	13:52	Clear	10	92	74	55	VRB 6	102 [HI]	29.92
Bay City	14:35	Mostly Clear	10	93	74	53	W 5	104 [HI]	29.87
Palacios	13:53	Clear	10	90	77	65	S 9	103 [HI]	29.92
Rig 20 Miles SE of Matagorda	14:40		9	84	78	83	WSW 6	95 [HI]	29.97

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