National Weather Service

News Headlines

New: 2025 In Review - Heat Dominates for a 3rd Year in Row; A March Historic Flood and Continued Water Issues Made Headlines
January-March 2026 Outlook - Drier and Warmer than Normal Conditions Expected To Continue; Drought, Wildfire Potential, Water Supply Issues and Cold Fronts Remain In Focus
Drought is Worsening and Increasing in Coverage Across the Area this Fall. Track Its Coverage Here.

Current conditions at

Port Isabel, Port Isabel-Cameron County Airport (KPIL)

Lat: 26.16°NLon: 97.34°WElev: 16ft.

Mostly Cloudy

78°F

26°C

Humidity	82%
Wind Speed	S 13 mph
Barometer	29.90 in (1012.3 mb)
Dewpoint	72°F (22°C)
Visibility	9.00 mi
Heat Index	80°F (27°C)
Last update	9 Jan 9:53 am CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Port Isabel TX

Today
High: 79 °F
Partly Sunny
Tonight
Low: 63 °F
Mostly Cloudy
then Chance
T-storms
Saturday
High: 68 °F⇓
Showers
Likely and
Breezy then
Chance
Showers and
Windy
Saturday Night
Low: 56 °F
Slight Chance
Showers and
Breezy
Sunday
High: 62 °F
Slight Chance
Showers and
Breezy
Sunday Night
Low: 56 °F
Slight Chance
Showers then
Cloudy
Monday
High: 65 °F
Slight Chance
Showers
Monday Night
Low: 58 °F
Chance
Showers
Tuesday
High: 65 °F
Slight Chance
Showers then
Mostly Cloudy

Detailed Forecast

Today

Partly sunny, with a high near 79. South southeast wind 10 to 14 mph.

Tonight

A slight chance of showers between 2am and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 63. South southeast wind 6 to 13 mph becoming north after midnight. Chance of precipitation is 50%.

Saturday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a temperature rising to near 68 by 10am, then falling to around 62 during the remainder of the day. Windy, with a north wind 14 to 19 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

Saturday Night

A 20 percent chance of showers. Cloudy, with a low around 56. Breezy, with a north wind 24 to 26 mph, with gusts as high as 31 mph.

Sunday

A 20 percent chance of showers. Mostly cloudy, with a high near 62. Breezy, with a north wind 18 to 23 mph, with gusts as high as 28 mph.

Sunday Night

A 20 percent chance of showers before midnight. Cloudy, with a low around 56. North wind 11 to 17 mph, with gusts as high as 22 mph.

Monday

A 20 percent chance of showers. Mostly cloudy, with a high near 65. North wind 11 to 14 mph.

Monday Night

A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 58. North northeast wind 7 to 10 mph.

Tuesday

A 20 percent chance of showers before noon. Mostly cloudy, with a high near 65. Northeast wind 7 to 10 mph.