NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sat, Aug 1, 2026 at 12:48:22 am CDT

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Heat Advisory

Friday Night

Saturday

Extended Outlook

NOAA Weather Radio Outage

A Heat Advisory is in effect Saturday for areas generally along and south of I-10. Heat index values of 107 to 110 expected. Locally up to 112 possible.

Mild and muggy. Mostly clear to partly cloudy. SSW winds 5-10 mph. Brief patchy fog possible. Rain chances gradually increasing early Saturday morning up north.

Hot! High temperatures in the mid 90s to 100 and heat indices in the 105-110F range. Scattered showers/storms expected ahead of a summer “cold” front. Highest afternoon chances north of I-10.

Heat will peak on Saturday with slight moderation Sunday. Heat picks back up going into early next week. Chances for showers and storms will return to the forecast over the weekend.

The NOAA Weather Radio (NWR) transmitter that serve the Bay City area remains offline. Technicians are aware of this outage. Unfortunately, it will remain out of service until parts arrive.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	00:15	Clear	10	83	74	75	SSW 12G17	-	29.96
College Station	23:53	Clear	10	83	74	74	S 10	-	29.94
Caldwell	23:55	Clear	10	82	73	74	S 13G20	-	29.96
Huntsville	23:53	Clear	10	82	74	76	SSW 10	-	29.94
Navasota	00:15	Clear	9	80	80	100	S 9	-	29.94
Brenham	00:15	Clear	10	81	74	81	S 7	-	29.95
Conroe	23:53	Clear	10	83	75	77	SSW 12G21	-	29.96
Cleveland	00:15	Clear	10				S 3	-	29.96
Liberty	00:15	Mostly Clear	10	78	77	94	SSW 3	-	29.94
Columbus	00:15	Clear	10	78	75	92	S 3	-	29.97
Spring	23:53	Clear	10	81	75	82	SSW 7	-	29.96
Houston Intercontinental Aprt	23:53	Clear	10	83	75	77	SW 7	-	29.96
Katy/Brookshire	00:15	Clear	10	80	77	88	SW 7	-	29.98
Texas Medical Center Heliport	00:15	Clear	10	82	75	78	SW 9	-	29.95
Sugar Land	23:53	Clear	10	80	76	87	SSW 8	-	29.95
Houston Hobby Airport	23:53	Clear	10	81	76	84	SSW 9	-	29.95
Arcola/Sienna	00:15	Clear		79	74	85	CALM	-	29.97
Pearland	23:53	Clear	10	80	75	84	SSW 3	-	29.97
Ellington Field	23:54	Clear	10	80	75	83	SSW 8	-	29.94
La Porte	00:15	Clear	10	80	77	88	SW 8	-	29.97
Angleton/Lake Jackson	23:53	Clear	10	79	76	90	SSW 7	-	29.97
Galveston	23:52	Mostly Clear	10	84	78	82	SSW 10	95 [HI]	29.97
Bay City	00:15	Clear	9	78	78	100	S 5	-	29.92
Palacios	23:53	Mostly Clear	10	84	77	79	S 10	94 [HI]	29.95
Rig 20 Miles SE of Matagorda	00:20		10	84	80	88	S 13	97 [HI]	30.01

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