NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Mon, Sep 21, 2026 at 1:16:59 am CDT

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

Today

Monday

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, mainly near the coast around Galveston. Tonight will be warm with early morning lows in the 70s to lower 80s.

Monday will be hot with highs in the 90s. There is a 20-30% chance of showers and thunderstorms during the daytime. Monday night will be warm with early morning lows in the 70s to lower 80s. There is a 20% chance of showers overnight across the portions of the Brazos Valley/Piney Woods area.

Hot weather continues throughout the next seven days with highs in the upper 80s to 90s. Early morning lows will be in the upper 60s far inland to mid 80s along the coast. Isolated showers and storms will be possible daily.

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	00:55	Clear	10	82	74	74	S 6	-	29.96
College Station	00:53	Clear	10	82	74	76	SSE 7	-	29.94
Caldwell	00:35	Clear	10	82	71	69	S 8	-	29.95
Huntsville	00:53	Clear	10	79	73	82	S 3	-	29.95
Navasota	00:55	Clear	10	80	78	94	SSE 6	-	29.92
Brenham	00:55	Clear	10	80	74	82	SSE 6	-	29.94
Conroe	00:53	Clear	10	75	73	93	NNW 3	-	29.95
Cleveland	00:55	Clear	10				CALM	-	29.96
Liberty	00:55	Mist	1 3/4	75	75	100	CALM	-	29.93
Columbus	00:55	Clear	10	79	74	86	CALM	-	29.95
Spring	00:53	Clear	10	77	75	93	CALM	-	29.94
Houston Intercontinental Aprt	00:53	Mostly Cloudy	10	80	76	87	SSE 3	-	29.94
Katy/Brookshire	00:55	Clear	10	78	77	94	S 6	-	29.95
Texas Medical Center Heliport	00:55	Overcast	10	82	77	83	VRB 6	-	29.93
Sugar Land	00:53	Clear	10	78	76	93	CALM	-	29.93
Houston Hobby Airport	00:53	Mostly Cloudy	10	82	76	81	S 5	-	29.93
Arcola/Sienna	00:55	Clear	10	76	75	95	CALM	-	29.95
Pearland	00:53	Clear	10	80	76	87	CALM	-	29.95
Ellington Field	22:54	Mostly Clear	10	82	77	83	SSE 3	-	29.92
La Porte	00:55	Mostly Cloudy	10	82	77	83	S 3	-	29.95
Wharton	00:55	Clear	10	77	74	90	ESE 3	-	29.95
Galveston	10:52	Mostly Clear	10	89	77	67	E 10	102 [HI]	30.18
Bay City	00:55	Mostly Clear	10				CALM	-	29.89
Palacios	00:53	Mostly Clear	10	79	76	90	CALM	-	29.92
Rig 20 Miles SE of Galveston	00:55	Mostly Clear	10	86	75	70	ESE 9	95 [HI]	29.95
Rig 20 Miles SE of Matagorda	01:00		10	84	75	74	SE 7	92 [HI]	29.96

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