Houston/Galveston, TX

Weather Forecast Office

NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Tue, May 19, 2026 at 5:52:22 pm CDT

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Heavy Rain Possible Tonight - Wednesday

Severe Thunderstorms Tonight

Additional Rainfall Starting Thursday

Forecast Rainfall Totals

High Risk of Rip Currents

Small Craft Advisory

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.

Multiple rounds of rain and thunderstorms are expected through this weekend. Highest forecast rainfall totals expected this weekend.

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.

A Small Craft Advisory is now in effect until Tuesday evening (offshore waters). Winds will be out of the southeast at 20 kts with gusts to 30 kts. Seas will be 5-8 ft with rough bay waters.

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	17:35	Lightning Observed	10	87	68	52	S 14G18	91 [HI]	29.95
College Station	16:53	Partly Cloudy	10	88	71	57	S 13	94 [HI]	29.94
Huntsville	17:04	Lightning Observed	10	85	72	65	SE 9	91 [HI]	29.99
Navasota	17:35	Lightning Observed	10	88	75	64	S 9	98 [HI]	29.94
Conroe	16:53	Mostly Cloudy	10	87	74	65	SSE 13	95 [HI]	29.97
Hooks Airport	16:53	Mostly Cloudy	9	86	71	61	SSE 7	92 [HI]	29.96
Intercontinental Airport	16:53	Mostly Cloudy	10	88	72	59	SSE 15	95 [HI]	29.96
Houston Hobby Airport	16:53	Partly Cloudy	10	88	74	63	SSE 14	97 [HI]	29.96
Sugar Land	16:53	Mostly Clear	10	88	74	63	SSE 14G24	97 [HI]	29.96
Wharton	17:35	Partly Cloudy	10	86	75	69	SSE 12G16	95 [HI]	29.96
Pearland	17:05	Partly Cloudy	8	86	74	67	SE 13	94 [HI]	29.99
Ellington Field	15:54	Mostly Cloudy	10	87	73	62	SSE 14G23	94 [HI]	29.97
La Porte	17:35	Lightning Observed	10	85	76	75	SE 14	94 [HI]	29.98
Angleton/Lake Jackson	16:53	Overcast	10	85	76	74	ESE 13	94 [HI]	29.97
Galveston	16:52	Overcast	10	83	77	82	SE 15	92 [HI]	29.98
Bay City	17:35	Mostly Cloudy	10	84	80	90	SE 10	97 [HI]	29.92
Palacios	16:53	Overcast	10	85	76	74	SE 14	94 [HI]	29.94
Rig 20 Miles SE of Galveston	17:35	Mist	3	80	77	88	ESE 13	-	30.00
Rig 20 Miles SE of Matagorda	17:40	Mist	5	82	82	100	CALM	96 [HI]	29.99

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