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Fullerton, CA

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Fullerton, CA Weather

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

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Hourly

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8 PM

84°

RealFeel® 82°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Clear

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

Heat Index85°

WindWSW 6 mph

Air QualityPoor

Wind Gusts6 mph

Humidity49%

Indoor Humidity49% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling33300 ft

9 PM

82°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

Heat Index83°

WindSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity54%

Indoor Humidity54% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

80°

RealFeel® 80°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

Heat Index80°

WindSSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity61%

Indoor Humidity61% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

77°

RealFeel® 77°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Clear

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

WindSSW 5 mph

Air QualityPoor

Wind Gusts5 mph

Humidity68%

Indoor Humidity68% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Fullerton

AccuWeather's hourly forecast for Fullerton provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 84° with a RealFeel® of 82°, clear 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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