Our Proprietary 10-Day Forecast

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Current warnings over Atherton, 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 Atherton, 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 Atherton, 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 San Mateo 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 Atherton, 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 Atherton, 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 Atherton, 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 Atherton, 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 Atherton, 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 San Mateo 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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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)
Atherton, California Climate Summary

General Climate

    •   Climate Type

Mediterranean

    •   Average Annual Temperature

57.3°F (14.1°C)

    •   Average Annual Precipitation

22.9 inches (582 mm)

    •   Average Annual Snowfall

0.1 inches (2.5 mm)

Temperature

    •   Average Summer High

80.2°F (26.8°C)

    •   Average Summer Low

54.4°F (12.4°C)

    •   Average Winter High

52.7°F (11.5°C)

    •   Average Winter Low

37.6°F (3.1°C)

Precipitation

    •   Wettest Month

January (4.0 inches)

    •   Driest Month

July (0.1 inches)

    •   Average Number of Rainy Days

63

Snowfall

    •   Average Annual Snowfall

0.1 inches (2.5 mm)

    •   Average Number of Snow Days

0.1

Other

    •   Average Annual Sunshine

260 days

    •   Average Annual Humidity

70%

Climate Summary

Atherton, California has a Mediterranean climate, with mild, wet winters and warm, dry summers. The average annual temperature is 57.3°F (14.1°C), with average summer highs of 80.2°F (26.8°C) and average winter lows of 37.6°F (3.1°C). The average annual precipitation is 22.9 inches (582 mm), with most of the rain falling during the winter months. Snowfall is rare in Atherton, with an average annual snowfall of only 0.1 inches (2.5 mm).

The Mediterranean climate of Atherton is ideal for growing a variety of plants, including fruits, vegetables, and flowers. The area is also home to a number of parks and nature preserves, which offer opportunities for hiking, biking, and other outdoor activities.

Additional Information

    •   Atherton is located in San Mateo County, California, about 20 miles south of San Francisco.
    •   The town has a population of approximately 7,000 people.
    •   Atherton is known for its beautiful homes, its excellent schools, and its proximity to San Francisco.

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

    •   Atherton is home to the largest remaining redwood grove in San Mateo County, known as the Flood Park Redwood Grove.

    •   The town's namesake, Faxon Dean Atherton, was a prominent botanist who collected over 100,000 plant specimens worldwide.

Science

    •   The Stanford Linear Accelerator Center (SLAC) is located in Atherton. It is one of the world's leading research facilities in particle physics.

    •   The town is home to several biotech companies, including Genentech and Amgen.

Personalities

    •   Former U.S. Secretary of State George Shultz and his wife, Charlotte Mailliard Shultz, resided in Atherton.

    •   The late actress Doris Day lived in the town for many years.

    •   Billionaire businessman Warren Buffett currently owns a home in Atherton.

Tourist Attractions
1. Filoli Historic House and Garden: A grand estate with a stunning mansion, formal gardens, and a picturesque landscape.

2. Stanford University: A prestigious university with a beautiful campus, museums, and cultural events.

3. Cantor Arts Center: An art museum at Stanford University showcasing a diverse collection of paintings, sculptures, and other works.

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