Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
LIVE NOW: AccuWeather tracks March megastorm severe weather. Chevron right
March megastorm: Blizzard, dangerous winds. Get the forecast. Chevron right

Castaic Junction, CA

74°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Castaic Junction

California

74°
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
Castaic Junction, 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

12 PM

81°
RealFeel® 83°
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 7%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™78°

WindENE 12 mph

Air QualityFair

Max UV Index5.3 (Moderate)

Wind Gusts22 mph

Humidity20%

Indoor Humidity20% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling33000 ft

1 PM

86°
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.
LEARN MORE
rain drop 5%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™82°

WindENE 15 mph

Air QualityFair

Max UV Index6.0 (High)

Wind Gusts27 mph

Humidity16%

Indoor Humidity16% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

90°
RealFeel® 91°
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.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™87°

WindENE 12 mph

Air QualityFair

Max UV Index5.3 (Moderate)

Wind Gusts24 mph

Humidity13%

Indoor Humidity13% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

94°
RealFeel® 94°
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.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™90°

WindENE 10 mph

Air QualityFair

Max UV Index4.3 (Moderate)

Wind Gusts23 mph

Humidity12%

Indoor Humidity12% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

92°
RealFeel® 92°
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.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™89°

WindENE 10 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts22 mph

Humidity13%

Indoor Humidity13% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

89°
RealFeel® 88°
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%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™86°

WindNE 8 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts21 mph

Humidity15%

Indoor Humidity15% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

85°
RealFeel® 84°
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%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™84°

WindNE 8 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts20 mph

Humidity18%

Indoor Humidity18% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

82°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

RealFeel Shade™79°

WindNNE 7 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts17 mph

Humidity25%

Indoor Humidity25% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

79°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

WindN 7 mph

Air QualityPoor

Wind Gusts16 mph

Humidity30%

Indoor Humidity30% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

76°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Heat Advisory

10:00 AM Monday - 10:00 AM Tuesday

WindN 7 mph

Air QualityPoor

Wind Gusts16 mph

Humidity33%

Indoor Humidity33% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

73°
RealFeel® 70°
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 Monday - 10:00 AM Tuesday

WindNNE 8 mph

Air QualityPoor

Wind Gusts16 mph

Humidity36%

Indoor Humidity36% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

70°
RealFeel® 68°
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 Monday - 10:00 AM Tuesday

WindNNE 8 mph

Air QualityPoor

Wind Gusts16 mph

Humidity39%

Indoor Humidity39% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Wednesday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

March megastorm slams U.S. with blizzard, tornado threat: See updates

28 minutes ago

Weather Forecasts

Hawaii Kona storm sweeps state with 135-mph winds, 44 inches of rain

1 hour ago

Winter Weather

Strengthening March Megastorm to unleash powerful winds, blizzard

1 hour ago

Severe Weather

High risk for severe weather to erupt in the eastern US

4 hours ago

Severe Weather

Severe weather wallops central, eastern US forcing school closures

24 minutes ago

 More Stories

Featured Stories

Weather News

Lightning strikes gas meter, sparking fire next to burn ban sign

3 days ago

Winter Weather

Nine states had their warmest winter ever recorded

5 days ago

Weather News

'Doomsday fish' rescued after washing ashore in Mexico

4 days ago

Recreation

'Quicksand alert' issued at National Park Service site

5 days ago

Severe Weather

Why nighttime tornadoes are 2.5 times more deadly

6 days ago
World North America United States California Castaic Junction

Weather Near Castaic Junction:

  • 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

...

...

...