Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Is Super El Niño coming? See what this could mean for weather and daily life. Chevron right

Costa Mesa, CA

71°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Costa Mesa

California

71°
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.
Let's Go Chevron right
Have an account already? Log In
settings
Help
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

Today

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

Today's Weather

Thu, Apr 9

Delightful with times of clouds and sun Hi: 71°

Tonight: Partly cloudy Lo: 60°

Current Weather

3:48 PM

71°F
RealFeel® 70°
Mostly cloudy More Details
RealFeel Shade™ 68°
Wind S 8 mph
Wind Gusts 8 mph
Air Quality Poor

Looking Ahead

Expect showery weather tomorrow evening through Saturday afternoon

Costa Mesa Weather Radar

Costa Mesa Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

4 PM 69°
rain drop 0%
5 PM 69°
rain drop 0%
6 PM 68°
rain drop 0%
7 PM 67°
rain drop 0%
8 PM 66°
rain drop 0%
9 PM 65°
rain drop 0%
10 PM 65°
rain drop 0%
11 PM 64°
rain drop 0%
12 AM 64°
rain drop 0%
1 AM 63°
rain drop 0%
2 AM 62°
rain drop 0%
3 AM 62°
rain drop 0%

10-Day Weather Forecast

Today

4/9

71° 60°

Pleasant with clouds and sun

Night: Partly cloudy

0%

Fri

4/10

70° 57°

Pleasant with clouds and sun

Mostly cloudy, a few showers

10%

Sat

4/11

69° 59°

Partly sunny with a shower

Increasing clouds, late rain

55%

Sun

4/12

67° 57°

Periods of rain

Mainly clear

91%

Mon

4/13

67° 57°

Sunshine and a few clouds

Clear

25%

Tue

4/14

64° 56°

Sunshine and a few clouds

Mostly clear

8%

Wed

4/15

66° 59°

Mainly cloudy

Partly cloudy

7%

Thu

4/16

65° 58°

Sun through high clouds

Partly cloudy

0%

Fri

4/17

66° 57°

Sunny

Mainly clear

2%

Sat

4/18

63° 57°

Partly sunny

Partly cloudy

0%

Sun & Moon

12 hrs 49 mins
Rise 6:29 AM
Set 7:18 PM
Last Quarter
Rise 1:49 AM
Set 11:29 AM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

See All
Tree Pollen High Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander High Data is not supported in this location

Top Stories

Climate

Super El Niño: What it could mean for weather, heat and daily life

5 hours ago

Climate

The US just experienced its hottest March on record

1 day ago

Weather Forecasts

Heat wave brewing for part of eastern US next week

3 hours ago

Live Blog

Updates: Artemis II set for Friday splashdown after lunar flyby

LATEST ENTRY

Astronauts spend penultimate day in space before California splashdown

3 hours ago

Severe Weather

Severe storms to threaten central US daily; building risk in mid-April

3 hours ago

More Stories

Featured Stories

Hurricane

Atlantic hurricane season forecast 2026: 11-16 named storms predicted

8 hours ago

Sports

Masters at Augusta National: Driest forecast since 2011

8 hours ago

Sports

Tropicana Field reopens after Hurricane Milton as Rays secure home win

2 days ago

Recreation

Hikers rescued after believing a mountain lion stalked their campsite

1 day ago

Astronomy

The upsidedown moon: Why the moon looks odd on the other side of the w...

1 day 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

...

...

...