NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Sun, Sep 6, 2026 at 12:40:38 pm CDT

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Sunday

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Monday

Extended Weather Outlook

KHGX Radar.

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	11:55	Mostly Cloudy	10	92	71	50	SSE 3	99 [HI]	29.97
College Station	11:53	Mostly Cloudy	10	89	73	59	NNW 6	97 [HI]	29.95
Caldwell	11:55	Partly Cloudy	10	91	69	49	CALM	96 [HI]	29.97
Huntsville	11:53	Partly Cloudy	10	90	75	61	VRB 5	101 [HI]	29.96
Navasota	12:15	Partly Cloudy	10	85	75	74	WSW 10	93 [HI]	29.95
Brenham	12:15	Partly Cloudy	10	91	72	53	S 7	99 [HI]	29.95
Conroe	11:53	Mostly Cloudy	10	90	77	65	NW 5	103 [HI]	29.96
Cleveland	12:15	Clear	10				CALM	-	29.97
Liberty	12:15	Partly Cloudy	10	89	75	62	E 7	99 [HI]	29.94
Columbus	12:15	Partly Cloudy	10	90	73	58	WSW 6	99 [HI]	29.97
Spring	12:13	Thunder In The Vicinity \ Lightning Observed	10	87	73	63	CALM	95 [HI]	29.95
Houston Intercontinental Aprt	11:53	Mostly Cloudy	10	87	76	69	NNE 5	98 [HI]	29.95
Katy/Brookshire	12:15	Mostly Cloudy	10	87	77	70	NNW 7	99 [HI]	29.97
Texas Medical Center Heliport	12:15	Thunder In The Vicinity \ Lightning Observed	10	86	75	70	SSE 5G12	95 [HI]	29.95
Sugar Land	12:08	Thunder In The Vicinity \ Lightning Observed	10	88	75	65	CALM	98 [HI]	29.95
Houston Hobby Airport	11:53	Rain \ Cumulonimbus Clouds, Lightning Observed	6	83	74	74	ENE 10G22	-	29.96
Arcola/Sienna	12:15	Heavy Rain \ Lightning Observed	2 1/2	83	77	82	S 8	92 [HI]	29.98
Pearland	11:53	Thunder In The Vicinity \ Light Rain \ Lightning Observed	9	81	76	84	E 7	-	29.97
Ellington Field	10:54	Light Rain	6	86	77	74	NE 7	97 [HI]	29.94
La Porte	11:55	Haze \ Lightning Observed	7	89	71	55	E 5	95 [HI]	29.96
Wharton	12:15	Partly Cloudy	10	84	75	73	SSE 13G17	92 [HI]	29.97
Angleton/Lake Jackson	11:53	Lightning Observed	10	88	73	61	VRB 3	96 [HI]	29.96
Galveston	11:52	Lightning Observed	10	88	77	70	S 9	100 [HI]	29.96
Bay City	12:15	Clear	10	88	77	70	S 8	101 [HI]	29.92
Palacios	11:53	Clear	10	88	76	67	SSW 6	99 [HI]	29.95
Rig 20 Miles SE of Matagorda	12:20		10	87	78	74	CALM	100 [HI]	30.00

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