Point Forecast: Port Isabel TX  26.06N 97.21W	Last Update: 5:00 am CDT Oct 26, 2026

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Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Red Flag Threat Index

48-Hour Period Starting: 5am Mon, Oct 26 20266am Mon, Oct 26 20267am Mon, Oct 26 20268am Mon, Oct 26 20269am Mon, Oct 26 202610am Mon, Oct 26 202611am Mon, Oct 26 202612pm Mon, Oct 26 20261pm Mon, Oct 26 20262pm Mon, Oct 26 20263pm Mon, Oct 26 20264pm Mon, Oct 26 20265pm Mon, Oct 26 20266pm Mon, Oct 26 20267pm Mon, Oct 26 20268pm Mon, Oct 26 20269pm Mon, Oct 26 202610pm Mon, Oct 26 202611pm Mon, Oct 26 202612am Tue, Oct 27 20261am Tue, Oct 27 20262am Tue, Oct 27 20263am Tue, Oct 27 20264am Tue, Oct 27 20265am Tue, Oct 27 20266am Tue, Oct 27 20267am Tue, Oct 27 20268am Tue, Oct 27 20269am Tue, Oct 27 202610am Tue, Oct 27 202611am Tue, Oct 27 202612pm Tue, Oct 27 20261pm Tue, Oct 27 20262pm Tue, Oct 27 20263pm Tue, Oct 27 20264pm Tue, Oct 27 20265pm Tue, Oct 27 20266pm Tue, Oct 27 20267pm Tue, Oct 27 20268pm Tue, Oct 27 20269pm Tue, Oct 27 202610pm Tue, Oct 27 202611pm Tue, Oct 27 202612am Wed, Oct 28 20261am Wed, Oct 28 20262am Wed, Oct 28 20263am Wed, Oct 28 20264am Wed, Oct 28 20265am Wed, Oct 28 20266am Wed, Oct 28 20267am Wed, Oct 28 20268am Wed, Oct 28 20269am Wed, Oct 28 202610am Wed, Oct 28 202611am Wed, Oct 28 202612pm Wed, Oct 28 20261pm Wed, Oct 28 20262pm Wed, Oct 28 20263pm Wed, Oct 28 20264pm Wed, Oct 28 20265pm Wed, Oct 28 20266pm Wed, Oct 28 20267pm Wed, Oct 28 20268pm Wed, Oct 28 20269pm Wed, Oct 28 202610pm Wed, Oct 28 202611pm Wed, Oct 28 202612am Thu, Oct 29 20261am Thu, Oct 29 20262am Thu, Oct 29 20263am Thu, Oct 29 20264am Thu, Oct 29 20265am Thu, Oct 29 20266am Thu, Oct 29 20267am Thu, Oct 29 20268am Thu, Oct 29 20269am Thu, Oct 29 202610am Thu, Oct 29 202611am Thu, Oct 29 202612pm Thu, Oct 29 20261pm Thu, Oct 29 20262pm Thu, Oct 29 20263pm Thu, Oct 29 20264pm Thu, Oct 29 20265pm Thu, Oct 29 20266pm Thu, Oct 29 20267pm Thu, Oct 29 20268pm Thu, Oct 29 20269pm Thu, Oct 29 202610pm Thu, Oct 29 202611pm Thu, Oct 29 202612am Fri, Oct 30 20261am Fri, Oct 30 20262am Fri, Oct 30 20263am Fri, Oct 30 20264am Fri, Oct 30 20265am Fri, Oct 30 20266am Fri, Oct 30 20267am Fri, Oct 30 20268am Fri, Oct 30 20269am Fri, Oct 30 202610am Fri, Oct 30 202611am Fri, Oct 30 202612pm Fri, Oct 30 20261pm Fri, Oct 30 20262pm Fri, Oct 30 20263pm Fri, Oct 30 20264pm Fri, Oct 30 2026

Date	10/26																			10/27
Hour (CDT)	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04
Temperature (°F)	73	72	72	72	74	77	78	79	80	80	80	80	80	79	77	77	76	76	76	75	75	74	73	72
Dewpoint (°F)	63	63	63	63	64	65	66	67	68	68	68	68	68	68	69	69	70	70	70	70	70	70	70	70
Heat Index (°F)						77	78	79	82	82	83	82	82	79	77	77	76	76	76	75	75
Surface Wind (mph)	3	3	3	3	3	5	7	9	10	10	10	11	10	10	8	8	7	7	6	6	6	5	6	6
Wind Dir	E	E	ENE	ENE	ENE	NE	ENE	NE	ENE	ENE	ENE	ENE	ENE	E	E	E	E	E	ESE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	52	53	68	64	56	58	70	50	46	60	58	45	37	34	36	31	42	23	39	36	48	38	55	64
Precipitation Potential (%)	2	3	7	7	10	13	18	14	9	11	6	6	8	7	10	14	18	21	24	29	30	32	35	39
Relative Humidity (%)	71	74	74	73	72	66	68	67	68	69	66	68	68	70	77	78	80	81	83	85	86	87	91	93
Rain	--	--	--	--	--	--	SChc	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc
Date																				10/28
Hour (CDT)	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04
Temperature (°F)	72	71	72	72	74	76	77	78	79	79	80	80	80	79	78	77	77	77	77	77	76	76	75	74
Dewpoint (°F)	70	70	70	70	70	70	71	71	71	71	71	71	70	70	70	70	70	70	70	70	70	70	70	70
Heat Index (°F)						76	77	78	83	82	83	84	83	82	78	77	77	77	77	77	76	76	75
Surface Wind (mph)	6	6	6	5	6	7	9	10	10	11	11	11	11	10	9	8	7	7	7	6	6	6	5	5
Wind Dir	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	E	E	E	ESE	ESE	ESE	ESE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	55	53	66	63	68	64	63	63	57	58	58	63	54	52	57	36	39	41	40	39	38	40	42	44
Precipitation Potential (%)	39	43	24	17	26	36	42	30	40	36	17	11	13	1	5	5	5	5	5	5	18	18	18	18
Relative Humidity (%)	93	96	94	93	90	82	80	78	76	76	74	72	73	74	77	80	81	80	80	81	82	84	86	88
Rain	Chc	Chc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc
Thunder	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--

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