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Costa Mesa, CA

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Costa Mesa, CA Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

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

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12 PM

68°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™66°

WindSSW 7 mph

Air QualityFair

Max UV Index5.6 (High)

Wind Gusts10 mph

Humidity68%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover63%

Visibility10 mi

Cloud Ceiling14500 ft

1 PM

69°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™66°

WindSSW 9 mph

Air QualityFair

Max UV Index6.1 (High)

Wind Gusts14 mph

Humidity64%

Indoor Humidity64% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling17300 ft

2 PM

69°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™66°

WindSW 10 mph

Air QualityFair

Max UV Index6.3 (High)

Wind Gusts17 mph

Humidity59%

Indoor Humidity59% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling24100 ft

3 PM

68°

RealFeel® 71°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™65°

WindSW 10 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts16 mph

Humidity60%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling26100 ft

4 PM

67°

RealFeel® 69°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™64°

WindSW 9 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts16 mph

Humidity62%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling28000 ft

5 PM

67°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™64°

WindSW 9 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts15 mph

Humidity64%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

66°

RealFeel® 65°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™63°

WindSSW 8 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts13 mph

Humidity67%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

64°

RealFeel® 63°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™63°

WindSSW 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts10 mph

Humidity73%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

62°

RealFeel® 61°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Partly cloudy

WindS 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity78%

Indoor Humidity64% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

60°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Partly cloudy

WindS 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity84%

Indoor Humidity64% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

59°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Partly cloudy

WindS 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity86%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

59°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Partly cloudy

WindSSE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity86%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

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 68° with a RealFeel® of 74°, intermittent clouds 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.

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