Our Proprietary 10-Day Forecast

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Current warnings over Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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 Stevenson Ranch, 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.
 
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Stevenson Ranch, California Climate Summary

Location


    •   Los Angeles County, Southern California
    •   Coordinates: 34.37°N, 118.56°W

Climate Type


    •   Mediterranean climate (Köppen classification: Csa)
    •   Characterized by warm, dry summers and mild, wet winters

Temperature


    •   Average annual temperature: 62.4°F (16.9°C)
    •   Average summer temperature (June-August): 75.2°F (24°C)
    •   Average winter temperature (December-February): 48.2°F (9°C)
    •   Record high temperature: 116°F (47°C)
    •   Record low temperature: 22°F (-6°C)

Precipitation


    •   Average annual precipitation: 16.3 inches (414 mm)
    •   Majority of precipitation falls during winter months (November-April)
    •   Average number of rainy days per year: 38

Humidity


    •   Average annual humidity: 66%
    •   Relatively low humidity during summer months

Wind


    •   Prevailing wind direction: West-northwest
    •   Average wind speed: 6.5 mph (10.5 km/h)

Other Climate Features

    •   Santa Ana winds

Strong, dry winds that can occur during fall and winter months

    •   June gloom

A period of overcast skies and drizzle that often occurs in June and July

    •   Wildfires

The area is prone to wildfires during dry summer months

Climate Trends


    •   Increasing average temperatures
    •   Decreasing precipitation
    •   More frequent and intense heat waves
    •   Longer fire seasons

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

    •   Stevenson Ranch lies within the San Gabriel Mountains, home to diverse flora and fauna.

    •   The area is known for its oak woodlands, chaparral, and riparian habitats.

    •   Wildlife includes bobcats, coyotes, deer, and over 150 bird species.

Science

    •   The Santa Susana Field Laboratory, a former nuclear research facility, is located nearby.

    •   The area has been the site of significant geological studies, including investigations into the San Andreas Fault.

Personalities

    •   The area was named after Robert Stevenson, a 19th-century rancher who owned the Rancho Ex-Mission San Fernando.

    •   In the 1950s, the area became a popular filming location for Western movies and TV shows.

    •   Notable residents have included actors John Wayne and Ronald Reagan.

Tourist Attractions
1. The Getty Center: This world-renowned art museum is located in nearby Brentwood and features a stunning collection of paintings, sculptures, and other works of art. The museum also has beautiful gardens and offers panoramic views of the city.

2. Universal Studios Hollywood: This theme park is located in nearby Universal City and offers a variety of rides, shows, and attractions based on popular movies and TV shows. The park is also home to the Wizarding World of Harry Potter, which is a must-see for any fan of the books and movies.

3. Griffith Observatory: This observatory is located in nearby Griffith Park and offers stunning views of the city and the Hollywood sign. The observatory also has a variety of exhibits on astronomy and space exploration.

Nearby Cities:

Santa Clarita, CA
Valencia, CAVal Verde, CA
Castaic, CAChatsworth, CA
Canyon Country, CASanta Susana, CA
Piru, CANorthridge, CA
San Fernando, CASimi Valley, CA
North Hills, CACanoga Park, CA
West Hills, CAWoodland Hills, CA
Hidden Hills, CACalabasas, CA
Los Angeles, CA
Long Beach, CABakersfield, CA
Anaheim, CASanta Ana, CA
Riverside, CAIrvine, CA
San Bernardino, CAFontana, CA
Oxnard, CAMoreno Valley, CA
Huntington Beach, CA