Houston/Galveston, TX

Weather Forecast Office

NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Wed, May 20, 2026 at 6:20:25 am CDT

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Heavy Rain Possible Tonight - Wednesday

Severe Thunderstorms Tonight

Heavy Rainfall Risk Thursday-Friday

Forecast Rainfall Totals

High Risk of Rip Currents

Current radar loop for Houston, TX.

Showers and thunderstorms expected tonight into Wednesday morning. Locally heavy rainfall of 1-3 inches is expected and localized flooding is possible.

Scattered thunderstorms possible north of I-10 this afternoon. Line of thunderstorms to push through the region from north to south overnight into early Wednesday morning. Some uncertainty regarding if the storms will weaken or not before reaching the coast. Damaging winds are the main severe threat. Hail will also be possible.

Unsettled pattern will lead to continued high chances for showers and thunderstorms, with additional rounds of moderate to heavy rainfall starting Thursday. This rainfall will generate runoff and river responses, especially where we see repeated heavy rainfall over the same locations.

After last night's / early this morning's thunderstorms, expect just widely scattered shower activity today. Additional rounds of heavy showers and thunderstorms possible on Thursday through the weekend. Widespread additional totals through Saturday in the 1-3 inch range expected. However, totals may be locally higher.

There is a high risk of rip currents along all Gulf facing beaches through Wednesday evening. Stay away from rocks and swim near a life guard.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Crockett	01:35	Rain \ Mist \ Lightning Observed	3	66	66	100	CALM	-	30.09
Caldwell	05:55	Lightning Observed	10	68	62	82	CALM	-	29.97
College Station	05:53	Partly Cloudy	10	69	64	83	S 12	-	29.94
Huntsville	05:53	Mostly Clear	10	66	64	93	ESE 3	-	30.01
Navasota	05:55	Overcast	10	67	67	100	S 12	-	29.97
Conroe	05:53	Mostly Cloudy	10	67	65	93	ENE 5	-	30.02
Hooks Airport	05:53	Clear	10	67	66	96	WSW 6	-	30.01
Intercontinental Airport	05:53	Rain	7	68	67	96	WSW 8	-	30.00
Houston Hobby Airport	05:53	Light Rain \ Lightning Observed	8	68	67	96	W 10	-	30.00
Sugar Land	05:53	Rain \ Mist \ Lightning Observed	5	68	67	96	W 7	-	30.03
Wharton	01:10	Light Rain	5	68	66	93	N 17G24	-	30.08
Pearland	05:53	Rain \ Mist \ Lightning Observed	3	68	67	96	NW 7	-	30.01
Ellington Field	05:54	Rain \ Cumulonimbus Clouds Observed	8	68	68	100	SW 5	-	29.99
La Porte	05:55	Rain \ Mist \ Lightning Observed	3 1/2	68	67	96	CALM	-	30.01
Angleton/Lake Jackson	05:53	Thunder In The Vicinity \ Mist \ Lightning Observed	1 1/4	69	68	96	NNE 13	-	30.00
Galveston	05:52	Thunder In The Vicinity \ Light Rain \ Lightning Observed	10	73	70	90	NNE 10	-	29.99
Bay City	05:55	Heavy Rain With Thunder \ Mist	1 3/4	69	69	100	N 13	-	30.01
Palacios	05:53	Rain With Thunder \ Lightning Observed	8	67	67	100	NNW 17	-	30.02
Rig 20 Miles SE of Galveston	05:55	Mostly Cloudy	8	75	71	88	ESE 25G31	-	29.98
Rig 20 Miles SE of Matagorda	05:55	Fog	1/4	71	71	100	NNE 25G32	-	29.99

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