NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Wed, Jul 22, 2026 at 2:00:22 am CDT

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Tropical Storm Bertha

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Tonight

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 westward in the eastern Gulf, with maximum sustained wind speeds of 60 mph. The system is expected to continue 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.

An Ozone Action Day is in effect for the Houston, Galveston, & Brazoria areas for Wednesday, July 22. Air quality may be unhealthy for sensitive groups.

Tonight's forecast: Expect mild and humid conditions with partly cloudy skies. Overnight lows will range from 76–81°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	01:15	Clear	10	84	71	64	SW 3	-	29.88
College Station	00:53	Clear	10	82	75	79	CALM	-	29.86
Caldwell	01:15	Clear	10	82	71	69	SW 5	-	29.88
Huntsville	00:53	Clear	10	83	72	69	SW 3	-	29.86
Navasota	01:35	Clear	10	79	79	100	S 5	-	29.85
Brenham	01:35	Clear	7	81	74	78	WSW 5	-	29.87
Conroe	00:53	Clear	10	77	72	84	CALM	-	29.86
Cleveland	01:35	Clear	10				CALM	-	29.85
Liberty	01:35	Clear	9	78	78	100	CALM	-	29.82
Columbus	01:15	Clear	10	78	74	86	CALM	-	29.89
Spring	00:53	Clear	8	82	72	71	W 6	-	29.85
Houston Intercontinental Aprt	00:53	Partly Cloudy	10	82	73	74	SW 3	-	29.84
Katy/Brookshire	01:35							-
Texas Medical Center Heliport	01:35	Mostly Clear	10	84	71	65	WSW 12	-	29.84
Sugar Land	00:53	Clear	10	80	74	81	SW 5	-	29.86
Houston Hobby Airport	00:53	Mostly Cloudy	10	83	75	77	WSW 10	-	29.84
Arcola/Sienna	01:35	Clear	10	80	73	79	WSW 6	-	29.87
Pearland	00:53	Clear	10	81	74	79	CALM	-	29.87
Ellington Field	22:54	Clear	10	86	71	62	SSW 9	91 [HI]	29.85
La Porte	01:35	Clear	10	82	75	78	WSW 6	-	29.85
Angleton/Lake Jackson	00:53		10	78	75	90	SW 3	-	29.86
Galveston	00:52	Clear	10	83	76	79	WSW 8	91 [HI]	29.86
Bay City	01:35	Clear	10	77	77	100	CALM	-	29.83
Palacios	00:53	Clear	10	84	77	79		-	29.87
Rig 20 Miles SE of Matagorda	01:40		10	82	80	94	SSW 17	93 [HI]	29.91

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