Our Proprietary 10-Day Forecast

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Current warnings over Perris, 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 Perris, 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 Perris, 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 Riverside 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 Perris, 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 Perris, 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 Perris, 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 Perris, 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 Perris, 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 Riverside 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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  • 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)
Perris, CA Climate Summary

Temperature

    •   Average annual temperature: 63.7°F (17.6°C)
    •   Average daily high temperature: 74.6°F (23.7°C)
    •   Average daily low temperature: 52.8°F (11.6°C)
    •   Highest recorded temperature: 116°F (46.7°C)
    •   Lowest recorded temperature: 16°F (-8.9°C)

Precipitation

    •   Average annual precipitation: 12.72 inches (32.3 cm)
    •   Average number of rainy days per year: 46
    •   Wettest month: February (2.56 inches)
    •   Driest month: July (0.04 inches)

Snowfall

    •   Average annual snowfall: 0.2 inches (0.5 cm)
    •   Number of days with snowfall: 0.1

Wind

    •   Average wind speed: 6.9 mph (11.1 km/h)
    •   Prevailing wind direction: West

Humidity

    •   Average annual relative humidity: 64%

Sunshine

    •   Average annual sunshine: 292 days
    •   Average daily sunshine: 8.1 hours

Climate Classification

    •   Köppen climate classification: Csa (Mediterranean climate)

Overall

Perris, CA has a mild Mediterranean climate with warm, dry summers and mild, wet winters. The city is located in a rain shadow, which means that it receives less precipitation than areas to the west. The average annual temperature is 63.7°F (17.6°C), and the average annual precipitation is 12.72 inches (32.3 cm).

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

    •   Perris lies within the San Jacinto Valley, known for its diverse flora and fauna.

    •   The Santa Ana River flows through the city, providing a vital riparian corridor.

    •   The region is home to numerous native plant species, including the endangered San Jacinto Mountain manzanita.

Science

    •   Perris is the site of the Lake Perris State Recreation Area, which features a large reservoir used for water storage and recreation.

    •   The city is home to the Perris Valley Skydiving Center, one of the largest skydiving facilities in the world.

    •   The San Jacinto Wildlife Area, located nearby, is a popular destination for birdwatching and wildlife viewing.

Personalities

    •   The city is named after Frederick T. Perris, a prominent railroad developer who played a key role in the establishment of the Southern Pacific Railroad line through the area.

    •   Perris was once home to the Perris Hill Racetrack, a popular dirt track racing venue that hosted races from the 1950s to the 1970s.

    •   The city has a strong military history, with the March Air Reserve Base located nearby.

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