South Padre Isla, TX Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for South Padre Isla, TX.

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Current Conditions — South Padre Isla, TX

PORT ISABEL (KPIL)

Cloudy

78.8 F
Humidity:89%
Wind Speed:SE 13.8 mph
Barometer:29.75 in
Dewpoint:75.2 F
Visibility:10.00 mi
Precip:--
Heat Index:82.4 F
Wind Chill:NA
Apr 27 2026, 02:30 AM CDT
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5-Day Forecast — South Padre Isla, TX

Monday

High 82 °F
Mostly Cloudy
Monday
Night
Low 77 °F
Mostly Cloudy
Tuesday

High 82 °F
Partly Sunny
Tuesday
Night
Low 77 °F
Partly Cloudy
Wednesday

High 82 °F
Partly Sunny
Wednesday
Night
Low 77 °F
Mostly Cloudy
Thursday

High 80 °F
Mostly Cloudy
Thursday
Night
Low 77 °F
Mostly Cloudy
Friday

High 82 °F
Partly Sunny

Detailed Forecast — South Padre Isla, TX

Monday
Mostly Cloudy. High near 82°F. Wind 14 to 18 mph, with gusts as high as 23 mph.
Monday Night
Mostly Cloudy. Low around 77°F. Wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Partly Sunny. High near 82°F. Wind 15 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
Partly Cloudy. Low around 77°F. Wind 16 to 18 mph, with gusts as high as 23 mph.
Wednesday
Partly Sunny. High near 82°F. Wind 16 to 18 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly Cloudy. Low around 77°F. Wind around 12 mph, with gusts as high as 15 mph.
Thursday
Mostly Cloudy. High near 80°F. Wind 17 to 20 mph, with gusts as high as 24 mph.
Thursday Night
Mostly Cloudy. Low around 77°F. Wind around 16 mph, with gusts as high as 20 mph.
Friday
Partly Sunny. High near 82°F. Wind 17 to 21 mph, with gusts as high as 26 mph.
Friday Night
Chance of Thunderstorms. Low around 73°F. Wind around 16 mph, with gusts as high as 18 mph.
Saturday
Chance of Thunderstorms. High near 77°F. Wind 21 to 25 mph, with gusts as high as 31 mph.
Saturday Night
Isolated T-storm. Low around 71°F. Wind around 20 mph, with gusts as high as 22 mph.
Sunday
Mostly Cloudy. High near 75°F. Wind 16 to 20 mph, with gusts as high as 23 mph.
TX Radar
Current Radar • TX
Day 1 Outlook • April 27, 2026

Observation History — South Padre Isla, TX

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
02:30 AM CDT SE 13.8 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.75 1007.5
02:20 AM CDT SE 12.7 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.75 1007.5
02:15 AM CDT 11.5 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.76 1007.8
02:10 AM CDT 13.8 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.76 1007.8
02:05 AM CDT 9.2 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.77 1008.1
02:00 AM CDT 9.2 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.77 1008.1
01:50 AM CDT 11.5 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.77 1008.1
01:45 AM CDT 13.8 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.77 1008.1
01:35 AM CDT SE 11.5 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:30 AM CDT 10.4 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:25 AM CDT 9.2 9.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:20 AM CDT SE 9.2 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:15 AM CDT SE 9.2 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:10 AM CDT SE 10.4 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
01:00 AM CDT SE 11.5 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
12:50 AM CDT SE 10.4 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
12:35 AM CDT SE 11.5 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
12:25 AM CDT 11.5 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
12:20 AM CDT 9.2 10.00 Cloudy -- 78.8 77.0 94% NA 82.8 29.79 1008.8
12:10 AM CDT SE 8.1 10.00 Cloudy -- 78.8 77.0 94% NA 82.8 29.79 1008.8
12:00 AM CDT SE 9.2 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.78 1008.5
11:50 PM CDT SE 8.1 10.00 Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
11:45 PM CDT 6.9 10.00 Mostly Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8
11:35 PM CDT SE 6.9 10.00 Mostly Cloudy -- 78.8 75.2 89% NA 82.4 29.79 1008.8

Regional Weather Observation

PORT ISABEL (KPIL)

Cloudy
78.8 F

HARLINGEN (KHRL)

Cloudy
78.8 F

WESLACO MIDVALLY (KTXW)

Mostly Cloudy
77.9 F

BROWNSVILLE (KBRO)

Mostly Cloudy
78.8 F

EDINBURG INTL (KEBG)

Fog/Mist
77.0 F

MCALLEN (KMFE)

Cloudy
78.8 F
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