Our Proprietary 10-Day Forecast

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Current warnings over Idylwood, Virginia
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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 Idylwood, Virginia 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 Idylwood, Virginia 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 Fairfax County, VA

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 Idylwood, Virginia

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 Idylwood, VA 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 Idylwood, VA

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 Idylwood, VA, 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 Idylwood, Virginia

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 Fairfax County, Virginia

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)
Idylwood, Virginia has a humid subtropical climate (Cfa) with hot, humid summers and mild to cool winters.

Temperature

    •   Average annual temperature: 55.5°F (13.1°C)
    •   Average summer temperature (June-August): 75.2°F (24°C)
    •   Average winter temperature (December-February): 36.3°F (2.4°C)
    •   Record high temperature: 106°F (41.1°C)
    •   Record low temperature: -15°F (-26.1°C)

Precipitation

    •   Average annual precipitation: 43.6 inches (1107 mm)
    •   Average snowfall: 16.3 inches (41.4 cm)
    •   Wettest month: July (4.9 inches or 124.5 mm)
    •   Driest month: October (2.6 inches or 66 mm)

Humidity

    •   Average annual relative humidity: 73%
    •   Highest monthly relative humidity: January (78%)
    •   Lowest monthly relative humidity: September (68%)

Wind

    •   Average wind speed: 8.4 mph (13.5 km/h)
    •   Prevailing wind direction: West-southwest

Climate Summary

Idylwood, Virginia experiences hot, humid summers with frequent thunderstorms. Winters are mild to cool with occasional snowfall. The spring and fall seasons are generally mild and pleasant. The area is prone to severe weather events such as tornadoes, hailstorms, and flooding.

Facts & Historical Information
(made with AI, use with caution)
Idylwood, Virginia, is a historic community located in Fairfax County.

Natural History

    •   Idylwood is home to the Difficult Run Stream Valley Park, a 300-acre natural area with diverse flora and fauna.

    •   The park features a variety of habitats, including forests, meadows, and streams, supporting a wide range of wildlife, including deer, foxes, and birds.

Science

    •   Idylwood was the site of the first successful radio transmission in the United States in 1899.

    •   The transmission was made by Guglielmo Marconi from his estate, Highwood, which is now part of the Difficult Run Stream Valley Park.

Personalities

  • Guglielmo Marconi:

    Italian inventor and Nobel laureate who developed the wireless telegraph.

  • Thomas Edison:

    American inventor who developed the electric light bulb and the phonograph. Edison frequently visited Marconi's estate in Idylwood.

  • John Philip Sousa:

    American composer and bandleader known as the \

    • Tourist Attractions
    1.Shenandoah National Park:

    This vast park offers breathtaking mountain scenery, hiking trails, waterfalls, and wildlife viewing opportunities. The Skyline Drive, a scenic road that runs through the park, provides stunning views of the Blue Ridge Mountains.

    2.Luray Caverns:

    These underground caverns are known for their spectacular formations, including stalactites, stalagmites, and flowstone. Visitors can take guided tours to explore the caverns and learn about their geological history.

    3.Massanutten Resort:

    This year-round resort offers a variety of activities, including skiing, snowboarding, golf, hiking, and swimming. The resort also has a waterpark, a spa, and several restaurants.

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