Houston/Galveston, TX

Weather Forecast Office

NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Thu, Jun 18, 2026 at 2:04:17 am CDT

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Tropical Storm Arthur

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Heat Safety

Thursday's Outlook

Small Craft Advisory

Coastal Flood Advisory

Arthur is now a post-tropical low. Tropical Storm Watches and Warnings have been cancelled. Lingering elevated seas and winds over the Gulf waters and along coastal areas.

Hot conditions are expected Thursday-Friday with heat indices between 107-114 degrees. Follow heat safety precautions.

Follow these heat safety rules.

A hot and humid day is in the forecast for Southeast Texas this Thursday. Temperatures are expected to reach 90-95°F, with dangerous heat indices climbing to 108-112°F+. For tips on staying safe during dangerous heat, visit www.weather.gov/safety/heat.

A Small Craft Advisory is in effect now through Thursday morning for the Gulf waters, Galveston Bay, and Matagorda Bay. Elevated seas of 4-7 ft, rough bay waters, and S 20-30KT winds gusting up to 40KT will be hazardous for small craft.

A Coastal Flood Advisory is in effect now through 3AM Thursday for Bolivar Peninsula, Galveston Island, Brazoria County Beaches, and the Matagorda Peninsula. Elevated water levels and minor coastal flooding is possible.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	01:35	Clear	10	77	74	90	SSE 5	-	29.66
College Station	00:53	Clear	10	78	74	87	SE 5	-	29.64
Caldwell	01:15	Overcast	10	77	73	88	SSE 6	-	29.64
Huntsville	00:53	Clear	10	76	74	93	SW 3	-	29.65
Navasota	01:35	Clear	9	76	76	100	SE 5	-	29.62
Brenham	01:35	Clear	10	76	75	97	CALM	-	29.63
Conroe	00:53	Mist	4	73	73	100	CALM	-	29.65
Cleveland	01:35	Mostly Cloudy	7				CALM	-	29.65
Liberty	01:35	Mist	5	77	77	100	CALM	-	29.62
Columbus	01:35	Clear	10	77	76	96	CALM	-	29.65
Spring	00:53	Clear	7	76	74	93	CALM	-	29.63
Houston Intercontinental Aprt	00:53	Mostly Clear	7	77	76	96	SSW 3	-	29.63
Katy/Brookshire	01:35	Clear	7	77	77	100	S 3	-	29.65
Texas Med Center Heliport	01:35	Clear	7	78	77	94	SSE 8	-	29.63
Sugar Land	00:53	Clear	10	78	76	93	SSE 3	-	29.63
Houston Hobby Airport	00:53	Mostly Clear	10	78	76	93	SSW 5	-	29.62
Arcola/Sienna	01:35	Clear	7	78	75	90	CALM	-	29.65
Pearland	00:53	Clear	10	78	76	93	SSW 3	-	29.65
Ellington Field	00:54	Partly Cloudy	10	78	77	94	SSW 5	-	29.62
La Porte	01:15	Clear	10	78	76	95	W 3	-	29.64
Angleton/Lake Jackson	00:53	Mostly Cloudy	10	80	78	93	S 3	-	29.64
Galveston	00:52	Mostly Cloudy	10	83	80	91	SSW 17G24	95 [HI]	29.64
Bay City	01:35	Mist	4	81	81	100	VRB 6	94 [HI]	29.60
Palacios	01:28	Mist	3	84	81	90	SSW 12	99 [HI]	29.63
Rig 20 Miles SE of Galveston	01:40	Mist	3	82	80	94	S 28	93 [HI]	29.66
Rig 20 Miles SE of Matagorda	01:40	Mist	2 1/2	82	82	100	S 25	96 [HI]	29.69

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