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Hawaii braces for Tropical Storm Lala, rare landfall possible. Click for the forecast.

Costa Mesa, CA

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Costa Mesa, CA Weather

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4 PM

77°

RealFeel® 80°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™75°

WindWSW 9 mph

Air QualityFair

Max UV Index3.8 (Moderate)

Wind Gusts16 mph

Humidity66%

Indoor Humidity66% (Humid)

Dew Point65° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover69%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

77°

RealFeel® 78°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly cloudy

RealFeel Shade™75°

WindWSW 9 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity65%

Indoor Humidity65% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

76°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly cloudy

RealFeel Shade™74°

WindWSW 8 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts14 mph

Humidity67%

Indoor Humidity67% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

75°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly cloudy

RealFeel Shade™74°

WindWSW 7 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts12 mph

Humidity69%

Indoor Humidity69% (Humid)

Dew Point64° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

74°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

WindSW 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity70%

Indoor Humidity70% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

71°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

WindSW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity76%

Indoor Humidity76% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling20700 ft

10 PM

71°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

WindSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity77%

Indoor Humidity77% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling11300 ft

11 PM

71°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

WindSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity78%

Indoor Humidity78% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling2000 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 77° with a RealFeel® of 80°, 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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