NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Tue, Jul 21, 2026 at 12:22:22 pm CDT

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Extreme Heat Warning

Heat Advisory

Dangerous Heat this Week

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.

Tropical Storm Bertha is currently drifting northwestward in the eastern Gulf, with maximum sustained wind speeds of 50 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	11:35	Clear	10	89	74	62	WSW 6	99 [HI]	29.98
College Station	11:53	Clear	10	90	72	55	WSW 5	97 [HI]	29.95
Caldwell	11:35	Clear	10	89	69	52	W 8	94 [HI]	29.97
Huntsville	11:53	Clear	10	89	72	57	VRB 3	96 [HI]	29.96
Navasota	11:55	Clear	10	90	78	67	WSW 7	104 [HI]	29.95
Brenham	11:55	Clear	10	89	70	53	W 7	94 [HI]	29.96
Conroe	11:53	Clear	10	91	71	52	W 8	98 [HI]	29.96
Cleveland	11:55	Clear	10				NW 6	-	29.96
Liberty	11:55	Clear	10	87	75	66	NNW 7	96 [HI]	29.93
Columbus	11:55	Clear	10	89	70	54	CALM	95 [HI]	29.97
Spring	11:53	Clear	8	89	73	59	SW 7	97 [HI]	29.96
Houston Intercontinental Aprt	11:53	Mostly Clear	10	91	70	50	W 10	97 [HI]	29.95
Katy/Brookshire	11:55	Clear	8	89	75	62	NW 5	99 [HI]	29.98
Texas Medical Center Heliport	11:55	Clear	8	89	69	52	WNW 10G16	94 [HI]	29.95
Sugar Land	11:53	Clear	10	88	75	65	WNW 9	98 [HI]	29.95
Houston Hobby Airport	11:53	Mostly Clear	10	89	72	57	W 9	96 [HI]	29.94
Arcola/Sienna	11:55	Clear	10	89	74	61	W 7	97 [HI]	29.97
Pearland	11:53	Clear	9	88	72	59	W 7	95 [HI]	29.97
Ellington Field	11:54	Clear	10	89	71	55	WNW 13	95 [HI]	29.94
La Porte	11:55	Clear	10	89	71	55	WNW 10	95 [HI]	29.96
Angleton/Lake Jackson	11:53	Clear	10	88	76	67	VRB 5	99 [HI]	29.95
Galveston	11:52	Clear	10	89	75	63	WSW 7	99 [HI]	29.95
Bay City	11:55	Clear	10	88	81	79	W 8	105 [HI]	29.92
Palacios	11:53	Clear	10	89	75	63	S 7	99 [HI]	29.95
Rig 20 Miles SE of Matagorda	12:00		9	84	78	83	W 7	95 [HI]	30.00

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