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Northeast weather to feel more like Thanksgiving than Memorial Day. See the temp forecast. Chevron right

Port Isabel, TX

80°F
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Port Isabel

Texas

80°
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Port Isabel, TX Weather
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3 AM

79°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index84°

WindSSE 10 mph

Air QualityPoor

Wind Gusts12 mph

Humidity95%

Indoor Humidity95% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling13800 ft

4 AM

79°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 40%
Chevron down
Intermittent clouds
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index81°

WindSSE 9 mph

Air QualityPoor

Wind Gusts10 mph

Humidity96%

Indoor Humidity95% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

5 AM

79°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index81°

WindSE 9 mph

Air QualityPoor

Wind Gusts10 mph

Humidity97%

Indoor Humidity95% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling11700 ft

6 AM

79°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index84°

WindSE 10 mph

Air QualityPoor

Wind Gusts10 mph

Humidity95%

Indoor Humidity95% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling8800 ft

7 AM

80°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™90°

Heat Index88°

WindSE 10 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts12 mph

Humidity93%

Indoor Humidity93% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling5900 ft

8 AM

81°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™91°

Heat Index90°

WindSE 12 mph

Air QualityPoor

Max UV Index0.6 (Low)

Wind Gusts13 mph

Humidity89%

Indoor Humidity89% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling5100 ft

9 AM

83°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™90°

Heat Index92°

WindSE 14 mph

Air QualityPoor

Max UV Index1.1 (Low)

Wind Gusts17 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling4400 ft

10 AM

85°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 39%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™92°

Heat Index96°

WindSE 15 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts21 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

11 AM

88°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™94°

Heat Index100°

WindSE 15 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts20 mph

Humidity69%

Indoor Humidity69% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling3100 ft

12 PM

85°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 60%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™90°

Heat Index97°

WindSSE 15 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts20 mph

Humidity83%

Indoor Humidity83% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Rain0.08 in

Visibility5 mi

Cloud Ceiling2500 ft

1 PM

84°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 60%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™88°

Heat Index94°

WindSSE 15 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts20 mph

Humidity82%

Indoor Humidity82% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.08 in

Visibility5 mi

Cloud Ceiling2000 ft

2 PM

84°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 70%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™89°

Heat Index96°

WindSSE 15 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts22 mph

Humidity83%

Indoor Humidity83% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.19 in

Visibility4 mi

Cloud Ceiling2000 ft

3 PM

84°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™90°

Heat Index94°

WindSE 15 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts24 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3100 ft

4 PM

82°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 70%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™86°

Heat Index91°

WindSE 15 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts23 mph

Humidity89%

Indoor Humidity89% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Rain0.19 in

Visibility4 mi

Cloud Ceiling2000 ft

5 PM

83°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 40%
Chevron down
Mostly cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™89°

Heat Index91°

WindSE 14 mph

Air QualityPoor

Max UV Index1.3 (Low)

Wind Gusts23 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling10600 ft

6 PM

83°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™89°

Heat Index90°

WindSE 14 mph

Air QualityPoor

Max UV Index0.9 (Low)

Wind Gusts20 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling17600 ft

7 PM

82°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 39%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™88°

Heat Index88°

WindSE 13 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts16 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling24600 ft

8 PM

81°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

RealFeel Shade™87°

Heat Index87°

WindSE 13 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts14 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling21300 ft

9 PM

81°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index86°

WindESE 12 mph

Air QualityPoor

Wind Gusts16 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling18000 ft

10 PM

80°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 63%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index86°

WindESE 12 mph

Air QualityFair

Wind Gusts15 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.11 in

Visibility4 mi

Cloud Ceiling2000 ft

11 PM

80°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 70%
Chevron down
Thunderstorms
alerts

Flood Watch

8:09 AM Thursday - 7:00 AM Monday

Heat Index86°

WindESE 9 mph

Air QualityFair

Wind Gusts13 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Rain0.11 in

Visibility4 mi

Cloud Ceiling2000 ft

Hourly Weather Forecast for Port Isabel

AccuWeather's hourly forecast for Port Isabel provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 79° with a RealFeel® of 88°, intermittent clouds with a 47% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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