For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Triple flood threat in the central US fueled by Pacific hurricanes. Click to read the forecast.

Costa Mesa, CA

Location

Location News Videos

Use Current Location

Recent

Costa Mesa

California

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Costa Mesa, CA 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

Hourly

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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

4 PM

75°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

RealFeel Shade™72°

WindW 10 mph

Air QualityFair

Max UV Index3.0 (Moderate)

Wind Gusts20 mph

Humidity66%

Indoor Humidity66% (Humid)

Dew Point63° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling33300 ft

5 PM

75°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

RealFeel Shade™72°

WindW 10 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts17 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

74°

RealFeel® 72°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

RealFeel Shade™72°

WindW 8 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts15 mph

Humidity64%

Indoor Humidity64% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

73°

RealFeel® 71°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly clear

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

WindWSW 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity67%

Indoor Humidity67% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

70°

RealFeel® 69°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

WindWSW 5 mph

Air QualityFair

Wind Gusts8 mph

Humidity73%

Indoor Humidity73% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

69°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

WindSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity77%

Indoor Humidity77% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

68°

RealFeel® 66°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

WindSSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity79%

Indoor Humidity79% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

68°

RealFeel® 66°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly clear

Coastal Flood Advisory

5:00 AM Monday - 5:00 PM Wednesday

WindS 5 mph

Air QualityPoor

Wind Gusts5 mph

Humidity81%

Indoor Humidity80% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Costa Mesa

AccuWeather's hourly forecast for Costa Mesa provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 75° with a RealFeel® of 76°, mostly sunny 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

Wednesday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

3 days of weather chaos: Nor’easter, hurricanes and a ‘zombie storm’

3 hours ago

Hurricane

Triple threat flood threat in the central US fueled by hurricanes

3 hours ago

Weather News

Nor’easter exposes likely 1884 shipwreck on Nantucket

6 hours ago

Weather News

Hurricane Nolo shuts Big Island highway as federal emergency declared

21 hours ago

Hurricane

Hurricane Polo to land in Mexico with life-threatening conditions

3 hours ago

Featured Stories

Weather News

About 200 sea turtle eggs moved from California nests ahead of Polo

5 hours ago

Astronomy

October stargazing: Best time to see Saturn, meteors from Halley's Com...

4 hours ago

Weather News

4 dead, 12 missing after Nepal avalanche

7 hours ago

Astronomy

NASA marks Hubble’s 200,000th orbit around Earth with a stunning image

4 days ago

Weather News

The newest pandas in the US have arrived in Atlanta. What we know abou...

8 hours ago

World North America United States California Costa Mesa

Weather Near Costa Mesa:

Anaheim, CA
Long Beach, CA
Los Angeles, CA

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

...

...

...