NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sun, Sep 6, 2026 at 3:48:22 pm CDT

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Sunday

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Monday

Extended Weather Outlook

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Key Messages: Lingering tropical moisture combined with an upper level disturbance will lead to another round of scattered showers/storms today, especially near and south of I-10. Locally heavy rainfall is possible. 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 most 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 showers and thunderstorms, especially near and south of I-10. Light SE winds outside of any storms. Highs in the low to mid 90s.

Isolated showers offshore early Monday morning. Light and variable winds. Lows mainly in the mid to upper 70s.

Isolated to scattered showers and thunderstorms along the seabreeze, especially near and south of I-10. Light southeasterly winds outside of any storms. Highs in the 90s.

Daily chances for showers and thunderstorms continues going through the week. Highs will be mainly 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	14:55	Thunder In The Vicinity \ Lightning Observed	10	93	73	51	CALM	102 [HI]	29.92
College Station	14:53	Lightning Observed	10	93	70	47	S 7	99 [HI]	29.90
Caldwell	14:55	Lightning Observed	10	91	69	49	S 9G17	96 [HI]	29.92
Huntsville	15:16	Thunder \ Mist \ Lightning Observed	3	79	76	90	SW 7	-	29.93
Navasota	15:15	Mostly Clear	9	91	78	67	SSE 6	106 [HI]	29.90
Brenham	15:15	Lightning Observed	10	87	75	66	SSE 7	97 [HI]	29.90
Conroe	15:15	Heavy Rain With Thunder \ Fog \ Lightning Observed	1/4	75	74	96	WSW 5	-	29.96
Cleveland	15:15	Thunder \ Lightning Observed	10				CALM	-	29.92
Liberty	15:15	Thunder In The Vicinity \ Lightning Observed	10	86	75	70	VRB 7	95 [HI]	29.89
Columbus	15:15	Light Rain	10	80	77	90	SE 3	-	29.92
Spring	14:53	Light Rain \ Lightning Observed	9	82	79	90	SSW 7	92 [HI]	29.92
Houston Intercontinental Aprt	14:53	Cumulonimbus Clouds Observed	10	85	77	77	S 7	95 [HI]	29.91
Katy/Brookshire	15:15	Clear	10	82	78	88	SSW 6	91 [HI]	29.93
Texas Medical Center Heliport	15:15	Thunder In The Vicinity \ Lightning Observed	9	80	75	83	CALM	-	29.90
Sugar Land	14:53	Mostly Clear	10	81	75	82	CALM	-	29.92
Houston Hobby Airport	14:53	Cumulonimbus Clouds, Lightning Observed	10	89	75	63	WSW 8	99 [HI]	29.90
Arcola/Sienna	15:15	Clear	10	83	77	81	CALM	92 [HI]	29.93
Pearland	14:53	Mostly Clear	10	87	74	65	SW 6	95 [HI]	29.93
Ellington Field	14:54	Mostly Cloudy	10	89	73	59	SW 3	97 [HI]	29.89
La Porte	15:15	Lightning Observed	10	89	75	62	WSW 8	99 [HI]	29.91
Wharton	15:15	Clear	10	87	75	67	ENE 9	97 [HI]	29.92
Angleton/Lake Jackson	13:15	Heavy Rain With Thunder	3/4	79	73	82	SSW 14G24	-	29.97
Galveston	14:52	Mostly Cloudy	10	87	77	72	SSE 8	99 [HI]	29.93
Bay City	15:15	Clear	10	85	77	77	E 9	94 [HI]	29.89
Palacios	14:53	Clear	10	91	72	53	SSE 9	99 [HI]	29.90
Rig 20 Miles SE of Matagorda	15:20		10	87	78	74	NE 6	100 [HI]	29.96

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