NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Mon, Sep 21, 2026 at 6:34:21 am CDT

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There are no watches, warnings, or advisories at this time.

Today

Tuesday

Seven Day Outlook

Autumnal Equinox

Today will be hot with highs in the 90s. There is a 20-30% chance of showers and thunderstorms during the daytime. Tonight will be warm with early morning lows in the 70s to lower 80s. There is a 20% chance of showers overnight near the Brazos Valley area and off the coast near Galveston Island / Bolivar Peninsula.

Tuesday will be hot with highs in the 90s. There is a 20-40% chance of showers and thunderstorms during the daytime, mainly near the coast. Tuesday night will be warm with early morning lows in the 70s to lower 80s. There is a 20-30% chance of showers overnight over the Gulf waters.

Hot weather continues with highs in the upper 80s/90s. Early morning lows will be in the 70s/mid 80s. Isolated showers and storms will be possible through the first half of the week. A weak frontal boundary pushes into the region on Thursday, bringing drier weather, slim to none rain chances, and a slight decrease in temperatures.

The autumnal equinox occurs on Tuesday, September 22nd, and 7:04 PM CDT and marks the beginning of the astronomical season of fall.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	05:55	Clear	10	79	74	86	CALM	-	29.94
College Station	05:53	Clear	10	78	74	87	SW 3	-	29.92
Caldwell	05:55	Clear	10	77	73	88	CALM	-	29.93
Huntsville	05:53	Clear	10	77	74	90	SW 3	-	29.93
Navasota	06:15	Clear	10	75	75	100	CALM	-	29.91
Brenham	06:15	Clear	10	75	73	94	CALM	-	29.91
Conroe	05:53	Clear	8	74	74	100	CALM	-	29.92
Cleveland	06:15	Clear	7				CALM	-	29.93
Liberty	06:15	Mist	2	73	73	100	CALM	-	29.91
Columbus	06:15	Clear	10	76	74	95	CALM	-	29.92
Spring	05:53	Mist	6	74	74	100	CALM	-	29.91
Houston Intercontinental Aprt	05:53	Mostly Cloudy	10	77	76	96	CALM	-	29.91
Katy/Brookshire	06:15	Overcast	9	77	77	100	CALM	-	29.93
Texas Medical Center Heliport	06:15	Overcast	10	80	75	83	CALM	-	29.90
Sugar Land	05:53	Clear	10	77	76	96	CALM	-	29.91
Houston Hobby Airport	05:53	Mostly Cloudy	10	80	76	87	CALM	-	29.90
Arcola/Sienna	06:15	Clear	10	75	74	95	CALM	-	29.92
Pearland	05:53	Clear	10	78	75	90	CALM	-	29.92
Ellington Field	05:54	Mostly Clear	10	80	75	83	ESE 5	-	29.89
La Porte	06:15	Clear	10	78	75	88	CALM	-	29.91
Wharton	06:15	Clear	10	75	73	93	CALM	-	29.92
Galveston	10:52	Mostly Clear	10	89	77	67	E 10	102 [HI]	30.18
Bay City	06:15	Clear	9				N 3	-	29.86
Palacios	05:53	Clear	10	79	76	90	CALM	-	29.89
Rig 20 Miles SE of Galveston	06:15	Clear	10	84	75	74	ESE 7G14	92 [HI]	29.91
Rig 20 Miles SE of Matagorda	06:20		10	84	77	79	CALM	94 [HI]	29.94

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