Point Forecast: Port Isabel TX  26.06N 97.21W	Last Update: 6:30 am CDT Jul 5, 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: 6am Sun, Jul 5 20267am Sun, Jul 5 20268am Sun, Jul 5 20269am Sun, Jul 5 202610am Sun, Jul 5 202611am Sun, Jul 5 202612pm Sun, Jul 5 20261pm Sun, Jul 5 20262pm Sun, Jul 5 20263pm Sun, Jul 5 20264pm Sun, Jul 5 20265pm Sun, Jul 5 20266pm Sun, Jul 5 20267pm Sun, Jul 5 20268pm Sun, Jul 5 20269pm Sun, Jul 5 202610pm Sun, Jul 5 202611pm Sun, Jul 5 202612am Mon, Jul 6 20261am Mon, Jul 6 20262am Mon, Jul 6 20263am Mon, Jul 6 20264am Mon, Jul 6 20265am Mon, Jul 6 20266am Mon, Jul 6 20267am Mon, Jul 6 20268am Mon, Jul 6 20269am Mon, Jul 6 202610am Mon, Jul 6 202611am Mon, Jul 6 202612pm Mon, Jul 6 20261pm Mon, Jul 6 20262pm Mon, Jul 6 20263pm Mon, Jul 6 20264pm Mon, Jul 6 20265pm Mon, Jul 6 20266pm Mon, Jul 6 20267pm Mon, Jul 6 20268pm Mon, Jul 6 20269pm Mon, Jul 6 202610pm Mon, Jul 6 202611pm Mon, Jul 6 202612am Tue, Jul 7 20261am Tue, Jul 7 20262am Tue, Jul 7 20263am Tue, Jul 7 20264am Tue, Jul 7 20265am Tue, Jul 7 20266am Tue, Jul 7 20267am Tue, Jul 7 20268am Tue, Jul 7 20269am Tue, Jul 7 202610am Tue, Jul 7 202611am Tue, Jul 7 202612pm Tue, Jul 7 20261pm Tue, Jul 7 20262pm Tue, Jul 7 20263pm Tue, Jul 7 20264pm Tue, Jul 7 20265pm Tue, Jul 7 20266pm Tue, Jul 7 20267pm Tue, Jul 7 20268pm Tue, Jul 7 20269pm Tue, Jul 7 202610pm Tue, Jul 7 202611pm Tue, Jul 7 202612am Wed, Jul 8 20261am Wed, Jul 8 20262am Wed, Jul 8 20263am Wed, Jul 8 20264am Wed, Jul 8 20265am Wed, Jul 8 20266am Wed, Jul 8 20267am Wed, Jul 8 20268am Wed, Jul 8 20269am Wed, Jul 8 202610am Wed, Jul 8 202611am Wed, Jul 8 202612pm Wed, Jul 8 20261pm Wed, Jul 8 20262pm Wed, Jul 8 20263pm Wed, Jul 8 20264pm Wed, Jul 8 20265pm Wed, Jul 8 20266pm Wed, Jul 8 20267pm Wed, Jul 8 20268pm Wed, Jul 8 20269pm Wed, Jul 8 202610pm Wed, Jul 8 202611pm Wed, Jul 8 202612am Thu, Jul 9 20261am Thu, Jul 9 20262am Thu, Jul 9 20263am Thu, Jul 9 20264am Thu, Jul 9 20265am Thu, Jul 9 20266am Thu, Jul 9 20267am Thu, Jul 9 20268am Thu, Jul 9 20269am Thu, Jul 9 202610am Thu, Jul 9 202611am Thu, Jul 9 202612pm Thu, Jul 9 20261pm Thu, Jul 9 20262pm Thu, Jul 9 20263pm Thu, Jul 9 20264pm Thu, Jul 9 20265pm Thu, Jul 9 2026

Date	07/05																		07/06
Hour (CDT)	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05
Temperature (°F)	81	81	82	84	86	88	89	90	89	90	89	88	88	86	84	83	83	82	82	82	82	81	81	80
Dewpoint (°F)	78	78	77	77	76	76	76	76	76	76	76	76	76	76	76	77	77	77	77	77	77	77	77	77
Heat Index (°F)	88	88	91	93	97	99	101	101	100	101	100	99	99	95	93	92	92	91	90	90	89	89	88	87
Surface Wind (mph)	8	8	9	9	11	13	13	14	14	15	15	14	14	13	11	10	9	9	8	8	7	8	8	7
Wind Dir	SSE	SSE	SSE	SSE	SSE	SSE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SSE	SSE	SSE	SSE	SSE	S
Gust
Sky Cover (%)	62	56	59	58	49	39	47	47	40	40	38	30	34	21	24	29	28	27	30	47	41	44	33	31
Precipitation Potential (%)	2	3	4	10	2	1	5	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	90	90	85	80	72	69	66	65	66	64	65	66	69	74	78	81	82	84	85	86	86	87	88	89
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																			07/07
Hour (CDT)	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05
Temperature (°F)	80	80	82	83	86	87	88	89	88	89	89	88	87	86	84	83	83	82	82	82	81	81	81	80
Dewpoint (°F)	77	77	76	76	76	76	76	76	75	75	75	75	76	76	76	76	76	77	77	77	77	77	77	77
Heat Index (°F)	87	87	89	92	95	97	99	100	99	100	99	98	97	95	92	91	91	90	90	89	89	88	87	86
Surface Wind (mph)	7	7	7	7	8	10	11	13	13	13	14	14	13	11	11	10	9	8	8	8	8	8	8	8
Wind Dir	S	S	S	SSE	SSE	SSE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SSE	SSE	SSE	SSE	SSE	SSE
Gust
Sky Cover (%)	42	44	52	50	30	16	16	29	23	26	16	20	15	8	1	15	28	29	30	31	32	33	34	34
Precipitation Potential (%)	0	2	2	0	0	0	0	2	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	89	89	85	78	72	68	66	65	65	63	65	66	68	73	77	80	81	83	84	85	86	87	87	89
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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