Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe weather to focus on central U.S. into the start of April. See the forecast. Chevron right
Snow and ice to kick off April from Minnesota to Maine. Get the forecast. Chevron right

Costa Mesa, CA

66°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Costa Mesa

California

66°
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 Daily 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 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Tue, Mar 31

Patchy fog will reduce visibility this morning; otherwise, low clouds, then perhaps some sun with a shower in spots late this afternoon Hi: 67°

Tonight: A passing shower or two; mostly cloudy this evening followed by areas of low clouds and fog Lo: 58°

Current Weather

4:30 AM

66°F
RealFeel® 66°
Cloudy More Details
Wind 0 mph
Wind Gusts 5 mph
Air Quality Fair

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

5 AM 62°
rain drop 43%
6 AM 62°
rain drop 44%
7 AM 62°
rain drop 40%
8 AM 63°
rain drop 7%
9 AM 64°
rain drop 7%
10 AM 65°
rain drop 7%
11 AM 66°
rain drop 7%
12 PM 66°
rain drop 7%
1 PM 66°
rain drop 10%
2 PM 66°
rain drop 17%
3 PM 67°
rain drop 17%
4 PM 66°
rain drop 22%

10-Day Weather Forecast

Today

3/31

67° 58°

A p.m. shower in places

Night: Areas of low clouds and fog

55%

Wed

4/1

68° 57°

Fog, then some sun

Mostly cloudy

1%

Thu

4/2

67° 57°

Fog, then some sun

Partly cloudy

25%

Fri

4/3

75° 57°

Clouds, then sun; warmer

Mainly clear

2%

Sat

4/4

79° 54°

Mostly sunny and very warm

Clear

1%

Sun

4/5

81° 61°

Mostly sunny and very warm

Clear to partly cloudy

5%

Mon

4/6

70° 58°

Sunny and not as warm

Clear

0%

Tue

4/7

71° 61°

Hazy sun

Clear

0%

Wed

4/8

70° 60°

Sunshine

Partly cloudy

1%

Thu

4/9

72° 60°

Plenty of sunshine

Mainly clear

0%

Sun & Moon

12 hrs 30 mins
Rise 6:41 AM
Set 7:11 PM
Waxing Gibbous
Rise 6:12 PM
Set 6:16 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

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 Low Data is not supported in this location

Top Stories

Severe Weather

Pre-Easter severe storms, flooding downpours to focus on central US

1 hour ago

Winter Weather

Ice and snow to bring power outage, travel risks to northern U.S.

1 hour ago

Astronomy

April’s full Pink moon rises April 1: Here’s when to watch

3 days ago

Weather Forecasts

Series of storms to usher in rain, cooler air to the West

1 hour ago

Astronomy

Artemis II: Weather ‘go’ for historic moon launch

20 hours ago

More Stories

Featured Stories

Astronomy

Artemis II: What to know about this historic moon mission

22 hours ago

Recreation

DC cherry blossoms reach peak bloom early

4 days ago

Astronomy

April's back-to-back astronomy events include 1st meteor shower in mon...

3 days ago

Astronomy

Everything's bigger on Jupiter, including its lightning bolts

3 days ago

Economic Impact

Gas prices surge nearly $1 in a month as EV charging holds steady

3 days 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

...

...

...