Our Proprietary 10-Day Forecast

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Current warnings over Castaic, California
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Castaic, California red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Castaic, California red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Los Angeles County, CA

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Castaic, California

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Castaic, CA please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Castaic, CA

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Castaic, CA, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Castaic, California

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Los Angeles County, California

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Climate Summary for Castaic, CA

General Climate

    •   Castaic, California has a Mediterranean climate, characterized by warm, dry summers and mild, wet winters.
    •   The average annual temperature is 62.6°F (17°C).
    •   The average annual precipitation is 18.6 inches (47 cm).
    •   The wettest month is February, with an average of 3.6 inches (9.1 cm) of rain.
    •   The driest month is July, with an average of 0.1 inches (0.2 cm) of rain.

Summer

    •   The average summer temperature is 78.6°F (25.9°C).
    •   The average high temperature in July is 93°F (34°C).
    •   The average low temperature in July is 64°F (18°C).
    •   Summer days are typically hot and dry, with little humidity.
    •   Nights are typically cool and comfortable.

Winter

    •   The average winter temperature is 46.6°F (8.1°C).
    •   The average high temperature in January is 59°F (15°C).
    •   The average low temperature in January is 34°F (1°C).
    •   Winter days are typically mild and sunny.
    •   Nights are typically cool and crisp.

Spring and Fall

    •   Spring and fall are transitional seasons, with temperatures gradually warming or cooling.
    •   The average spring temperature is 57.2°F (14°C).
    •   The average fall temperature is 67.8°F (19.9°C).
    •   Spring and fall days are typically mild and sunny.
    •   Nights are typically cool and comfortable.

Precipitation

    •   Castaic receives an average of 18.6 inches (47 cm) of rain per year.
    •   The majority of the rain falls during the winter months.
    •   Snowfall is rare in Castaic, but it can occur occasionally during the winter months.

Natural Disasters

    •   Castaic is located in a seismically active area and is at risk of earthquakes.
    •   The area is also at risk of wildfires, especially during the summer months.
    •   Flooding can also occur in Castaic, especially during the winter months.

Overall

    •   Castaic, California has a Mediterranean climate, with warm, dry summers and mild, wet winters.
    •   The area is at risk of natural disasters, such as earthquakes, wildfires, and flooding.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Castaic Lake, formed by the Castaic Dam, is a reservoir that provides water to Southern California. It is home to a diverse array of fish, birds, and mammals, including bald eagles and coyotes.

    •   The Santa Clara River runs through Castaic, providing a riparian habitat for numerous plant and animal species.

    •   The San Gabriel Mountains to the north offer scenic hiking and wildlife viewing opportunities.

Science

    •   Castaic is home to the NASA Jet Propulsion Laboratory, which has played a crucial role in space exploration, including the Mars rovers and the Hubble Space Telescope.

    •   The Castaic Research Station, operated by the University of California, Berkeley, conducts scientific research on ecology, water resources, and climate change.

Personalities

    •   John C. Fremont, the \

Tourist Attractions
1.Castaic Lake Recreation Area

is a popular spot for boating, fishing, swimming, and hiking. The lake is surrounded by rolling hills and offers stunning views of the surrounding mountains.

2.Six Flags Magic Mountain

is a world-renowned theme park located just a few miles from Castaic. The park features over 100 rides, shows, and attractions, making it a great place to spend a day of fun and excitement.

3.Antelope Valley California Poppy Reserve

is a state park located about 30 miles from Castaic. The park is home to over 1,700 acres of California poppies, which bloom in a vibrant orange color in the spring.

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Green Valley, CAChatsworth, CA
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Northridge, CANorth Hills, CA
Canoga Park, CAWest Hills, CA
Los Angeles, CA
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Anaheim, CASanta Ana, CA
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San Bernardino, CAFontana, CA
Oxnard, CAMoreno Valley, CA
Huntington Beach, CA