NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Tue, Sep 15, 2026 at 5:54:13 pm CDT

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Heat Advisory

Special Weather Statement

Heat Advisory

Tonight

Wednesday

Extended Weather Outlook

Hot and humid conditions are expected to continue on Tuesday. Highswill generally be in the mid to upper 90s with peak heat indices in the 106-109F range. A Heat Advisory is now in effect until Tuesday evening. Remember to practice heat safety wherever you are by staying cool, taking frequent breaks, and drinking plenty of water.

It will be another warm, muggy night as temperatures dip into the mid-70s to around 80°F inland and hold in the upper 70s to low 80s along the coast. A few coastal showers will be possible near sunrise.

Hot and humid with less rain/storm chances.

Daily chances for showers and thunderstorms continues with decreasing chances Friday and Saturday. Highs will be mainly in the mid 90s with peak heat indices up to 107F.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	17:15	Partly Cloudy	10	98	67	36	S 12G16	103 [HI]	30.01
College Station	16:53	Mostly Clear	10	98	65	34	S 17G21	101 [HI]	29.99
Caldwell	17:15	Clear	10	98	66	34	SE 10	102 [HI]	30.00
Huntsville	16:53	Clear	10	96	69	41	SE 7	102 [HI]	30.02
Navasota	17:35	Mostly Clear	9	94	70	45	SE 10	101 [HI]	29.99
Brenham	17:35	Partly Cloudy	10	95	70	43	SE 7	101 [HI]	29.99
Conroe	16:53	Lightning Observed	10	91	73	55	SE 7	100 [HI]	30.03
Cleveland	17:35	Clear	10				CALM	-	30.04
Liberty	17:35	Clear	10	91	77	62	SE 6	105 [HI]	30.03
Columbus	17:35	Lightning Observed	10	96	70	42	SSE 8	103 [HI]	30.01
Spring	16:53	Lightning Observed	9	90	74	59	SE 15G23	99 [HI]	30.02
Houston Intercontinental Aprt	16:53	Cumulonimbus Clouds Observed	10	84	69	60	SSE 7G25	-	30.02
Katy/Brookshire	17:35	Clear	8	91	75	59	SSE 10G17	102 [HI]	30.03
Texas Medical Center Heliport	17:35	Clear	10	89	73	59	ESE 10G20	97 [HI]	30.01
Sugar Land	16:53	Lightning Observed	10	93	75	56	SE 13	105 [HI]	30.02
Houston Hobby Airport	17:13	Light Rain	10	85	75	72	CALM	93 [HI]	30.01
Arcola/Sienna	17:35	Partly Cloudy	10	92	74	55	SSE 8	102 [HI]	30.03
Pearland	17:19	Clear	10	92	74	55	SSE 10	102 [HI]	30.04
Ellington Field	16:54	Cumulonimbus Clouds, Lightning Observed	10	91	73	55	S 12	100 [HI]	30.02
La Porte	17:35	Clear	10	91	77	62	SE 13G17	105 [HI]	30.03
Wharton	17:35	Clear	10	93	73	52	SSE 16	102 [HI]	30.02
Galveston	16:52	Lightning Observed	10	90	78	68	SSE 12	105 [HI]	30.05
Bay City	17:35	Mostly Clear	10	91	78	65	SSE 14	106 [HI]	29.99
Palacios	16:53	Clear	7	92	77	61	S 15	106 [HI]	30.01
Rig 20 Miles SE of Galveston	17:35	Clear	10	87	77	70	ESE 9	99 [HI]	30.07
Rig 20 Miles SE of Matagorda	17:40		10	87	80	79	SE 9	103 [HI]	30.08

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