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Tustin, CA

89°F
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Tustin

California

89°
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Tustin, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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5 PM

89°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
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rain drop 0%
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Sunny
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

RealFeel Shade™87°

Heat Index90°

WindWSW 8 mph

Air QualityPoor

Max UV Index2.6 (Moderate)

Wind Gusts13 mph

Humidity42%

Indoor Humidity42% (Humid)

Dew Point63° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling33400 ft

6 PM

87°
RealFeel® 87°
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.
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rain drop 0%
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Mostly sunny
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

RealFeel Shade™85°

Heat Index88°

WindWSW 8 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts10 mph

Humidity47%

Indoor Humidity47% (Humid)

Dew Point64° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover12%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

84°
RealFeel® 85°
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.
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rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

RealFeel Shade™85°

Heat Index86°

WindWSW 7 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts8 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point66° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

82°
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.
LEARN MORE
rain drop 0%
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Mostly clear
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

Heat Index84°

WindWSW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

79°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 0%
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Mostly clear
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

Heat Index80°

WindSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity67%

Indoor Humidity67% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover24%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

77°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

WindSSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity73%

Indoor Humidity73% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

75°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Heat Advisory

10:00 AM Saturday - 10:00 AM Tuesday

WindSSW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity78%

Indoor Humidity78% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Tustin

AccuWeather's hourly forecast for Tustin provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 89° with a RealFeel® of 90°, sunny 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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