Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Arthur makes landfall in Texas; now a tropical rainstorm. Click for the forecast. Chevron right

Sebastian, TX

81°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Sebastian

Texas

81°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Sebastian, TX Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

5 AM

80°
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 0%
Chevron down
Partly cloudy

Heat Index90°

WindSSE 12 mph

Air QualityPoor

Wind Gusts18 mph

Humidity97%

Indoor Humidity95% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

81°
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 0%
Chevron down
Mostly clear

Heat Index90°

WindSSE 10 mph

Air QualityPoor

Wind Gusts18 mph

Humidity96%

Indoor Humidity95% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

7 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 0%
Chevron down
Mostly sunny

RealFeel Shade™91°

Heat Index88°

WindSSE 10 mph

Air QualityPoor

Max UV Index0.9 (Low)

Wind Gusts21 mph

Humidity91%

Indoor Humidity91% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

83°
RealFeel® 96°
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 0%
Chevron down
Mostly sunny

RealFeel Shade™92°

Heat Index94°

WindSSE 12 mph

Air QualityPoor

Max UV Index1.9 (Low)

Wind Gusts18 mph

Humidity86%

Indoor Humidity86% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

87°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 0%
Chevron down
Mostly sunny

RealFeel Shade™96°

Heat Index103°

WindSSE 13 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts20 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

90°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 0%
Chevron down
Mostly sunny

RealFeel Shade™99°

Heat Index108°

WindSSE 14 mph

Air QualityPoor

Max UV Index4.9 (Moderate)

Wind Gusts22 mph

Humidity72%

Indoor Humidity72% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

93°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™102°

Heat Index113°

WindSSE 15 mph

Air QualityPoor

Max UV Index8.2 (Very High)

Wind Gusts25 mph

Humidity66%

Indoor Humidity66% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

96°
RealFeel® 113°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™105°

Heat Index117°

WindSSE 16 mph

Air QualityPoor

Max UV Index11.1 (Extreme)

Wind Gusts29 mph

Humidity60%

Indoor Humidity60% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

99°
RealFeel® 115°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™107°

Heat Index120°

WindSSE 16 mph

Air QualityPoor

Max UV Index12.5 (Extreme)

Wind Gusts31 mph

Humidity56%

Indoor Humidity56% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

100°
RealFeel® 115°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™108°

Heat Index121°

WindSSE 16 mph

Air QualityPoor

Max UV Index11.1 (Extreme)

Wind Gusts32 mph

Humidity53%

Indoor Humidity53% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

102°
RealFeel® 116°
Very Dangerous Heat
RealFeel Guide
Very Dangerous Heat
116° to 124°
Significant caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™110°

Heat Index122°

WindSSE 17 mph

Air QualityPoor

Max UV Index8.2 (Very High)

Wind Gusts32 mph

Humidity49%

Indoor Humidity49% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

101°
RealFeel® 113°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™108°

Heat Index120°

WindSSE 17 mph

Air QualityPoor

Max UV Index4.9 (Moderate)

Wind Gusts35 mph

Humidity50%

Indoor Humidity50% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

100°
RealFeel® 111°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™107°

Heat Index119°

WindSSE 16 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts32 mph

Humidity51%

Indoor Humidity51% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

98°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™106°

Heat Index117°

WindSSE 15 mph

Air QualityPoor

Max UV Index1.9 (Low)

Wind Gusts31 mph

Humidity55%

Indoor Humidity55% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

95°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™106°

Heat Index113°

WindSSE 15 mph

Air QualityPoor

Max UV Index0.9 (Low)

Wind Gusts30 mph

Humidity60%

Indoor Humidity60% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

92°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 0%
Chevron down
Partly sunny

RealFeel Shade™101°

Heat Index109°

WindSE 16 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts31 mph

Humidity66%

Indoor Humidity66% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

89°
RealFeel® 99°
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 0%
Chevron down
Partly cloudy

Heat Index105°

WindSE 16 mph

Air QualityPoor

Wind Gusts30 mph

Humidity73%

Indoor Humidity73% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

86°
RealFeel® 96°
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 0%
Chevron down
Intermittent clouds

Heat Index100°

WindSE 15 mph

Air QualityPoor

Wind Gusts27 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover53%

Visibility10 mi

Cloud Ceiling11900 ft

11 PM

83°
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 0%
Chevron down
Intermittent clouds

Heat Index95°

WindSSE 15 mph

Air QualityFair

Wind Gusts23 mph

Humidity86%

Indoor Humidity86% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6900 ft

Hourly Weather Forecast for Sebastian

AccuWeather's hourly forecast for Sebastian provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 80° with a RealFeel® of 92°, partly cloudy with a 0% 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.

Further Ahead

Tomorrow

Saturday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Arthur makes landfall in Texas, to raise flood risk across southern US

5 hours ago

Severe Weather

New severe weather outbreak with tornadoes unfolding for Midwest

8 hours ago

Weather News

Tropical Storm Arthur swamps cars in Texas as flood threat escalates

8 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Tropical Storm Arthur may impact travel to Houston World Cup match

18 hours ago

Astronomy

Moon to align with 3 planets in the nights before the summer solstice

18 hours ago

 More Stories

Featured Stories

Weather News

South Florida wildfire sending smoke into nearby communities

10 hours ago

Recreation

Free climber dies after falling into volcanic crater in Yemen

15 hours ago

Health

Pickle is the pumpkin spice of summer

2 days ago

Climate

A mysterious ‘cold blob’ in the ocean has puzzled scientists

5 days ago

Weather News

Submersible ride revealed whale graveyard. It holds more than bones

2 days ago
World North America United States Texas Sebastian

Weather Near Sebastian:

  • Brownsville, TX
  • Edinburg, TX
  • McAllen, TX
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...