NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sat, Sep 5, 2026 at 2:36:30 pm CDT

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Key Messages: Plume of deeper tropical moisture combined with an upper level disturbance will lead to scattered to widespread showers/storms today. Some of these storms may be capable of producing locally heavy rainfall. Grounds in areas east of I-45 remain very saturated from previous rounds of rainfall. There is a Marginal Risk (level 1 of 4) of Excessive Rainfall for all of Southeast Texas today. Potential Impacts: Localized instances of street flooding, especially in low-lying areas, areas with poor drainage, and areas already saturated from previous rounds of rain. Rainfall rates of 2-3+”/hr possible in the heaviest downpours. Actions: Have multiple ways to receive alerts. Stay up to date with the latest forecasts.

Scattered to widespread showers and thunderstorms, especially east of I-45. Light southeasterly winds outside of any storms. Highs in the low to mid 90s.

Isolated showers/storms possible overnight, mainly west of I-45. Light and variable winds. Lows mainly in the mid to upper 70s.

Scattered to widespread showers and thunderstorms especially south of I-10. Light southerly winds outside of any storms. High temperatures in the low to mid 90s.

Daily chances for showers and thunderstorms continues going into next week. Highs will be in the upper 80s/90s with lows in the 70s/lower 80s.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	13:55	Overcast	10	94	72	48	ENE 5	103 [HI]	29.93
College Station	13:53	Mostly Clear	10	92	70	48	WSW 17G24	98 [HI]	29.91
Caldwell	13:55	Clear	10	87	71	58	SSE 8	93 [HI]	29.94
Huntsville	13:53	Clear	10	91	71	52	VRB 5	98 [HI]	29.92
Navasota	14:15	Mostly Cloudy	10	98	72	44	VRB 7	107 [HI]	29.89
Brenham	14:15	Lightning Observed	10	92	70	47	CALM	98 [HI]	29.91
Conroe	13:53	Overcast	10	92	74	55	NW 5	102 [HI]	29.91
Cleveland	14:15	Partly Cloudy	10				CALM	-	29.91
Liberty	14:15	Lightning Observed	10	89	78	70	S 7	103 [HI]	29.90
Columbus	14:15	Lightning Observed	10	93	71	48	ESE 6	100 [HI]	29.91
Spring	13:53	Mostly Cloudy	10	90	74	59	CALM	99 [HI]	29.90
Houston Intercontinental Aprt	13:53	Mostly Cloudy	10	93	75	56	E 8	105 [HI]	29.90
Katy/Brookshire	14:15	Clear	10	95	69	44	CALM	101 [HI]	29.91
Texas Medical Center Heliport	14:15	Lightning Observed	10	87	73	62	VRB 5	94 [HI]	29.91
Sugar Land	13:53	Lightning Observed	10	92	76	59	ESE 12G16	104 [HI]	29.90
Houston Hobby Airport	13:53	Cumulonimbus Clouds, Lightning Observed	9	88	75	65	ESE 6	98 [HI]	29.91
Arcola/Sienna	14:15	Lightning Observed	10	90	74	59	ESE 7	99 [HI]	29.92
Pearland	13:53	Lightning Observed	10	88	72	59	VRB 3	95 [HI]	29.94
Ellington Field	13:54	Mostly Cloudy	10	86	75	70	ESE 6	95 [HI]	29.91
La Porte	14:15	Lightning Observed	10	87	75	66	SE 7	96 [HI]	29.92
Wharton	14:15	Mostly Cloudy	10	90	72	55	ESE 9	98 [HI]	29.91
Angleton/Lake Jackson	14:06	Lightning Observed	10	91	72	53	VRB 6	99 [HI]	29.92
Galveston	13:52	Lightning Observed	10	89	75	63	SE 9	99 [HI]	29.93
Bay City	14:15	Lightning Observed	10	92	76	59	SSE 9	105 [HI]	29.87
Palacios	13:53	Mostly Clear	10	88	77	70	SE 8	100 [HI]	29.91
Rig 20 Miles SE of Matagorda	14:20	Mist	4	78	75	88	S 9G17	-	29.97

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