Our Proprietary 10-Day Forecast

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Current warnings over Dumfries, 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 Dumfries, 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 Dumfries, 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 Prince William 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 Dumfries, 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 Dumfries, 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 Dumfries, 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 Dumfries, 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 Dumfries, 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 Prince William 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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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)
Dumfries, Virginia, located in Prince William County, experiences a humid subtropical climate (Köppen Cfa), characterized by hot, humid summers and mild to cool winters. Here's a summary of the climate in Dumfries:

Temperature


    •   Average annual temperature: 56.4°F (13.6°C)
    •   Average summer temperature (June-August): 77.5°F (25.3°C)
    •   Average winter temperature (December-February): 36.7°F (2.6°C)
    •   Record high temperature: 106°F (41.1°C)
    •   Record low temperature: -12°F (-24.4°C)

Precipitation


    •   Average annual precipitation: 42.5 inches (108 cm)
    •   Average monthly precipitation: 3.5 inches (8.9 cm)
    •   Highest monthly precipitation: 6.6 inches (16.8 cm) in August
    •   Lowest monthly precipitation: 2.4 inches (6.1 cm) in February
    •   Average snowfall: 15.2 inches (38.6 cm)
    •   Highest monthly snowfall: 10.3 inches (26.2 cm) in January

Humidity


    •   Average annual relative humidity: 70%
    •   Highest monthly relative humidity: 80% in January
    •   Lowest monthly relative humidity: 60% in June

Wind


    •   Average wind speed: 9.6 mph (15.4 km/h)
    •   Prevailing wind direction: West-southwest

Climate Extremes


    •   Dumfries has experienced extreme weather events, including heat waves, cold spells, heavy rainfall, and occasional severe thunderstorms.
    •   The area is prone to flooding during periods of heavy rain, especially along the Potomac River and its tributaries.
    •   Dumfries is located in USDA Plant Hardiness Zone 7a, indicating that it is suitable for a wide range of plants and vegetation.

Overall, Dumfries, Virginia, has a temperate climate with distinct seasons, making it an attractive location for residents and visitors alike.

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

    •   Dumfries lies at the confluence of the Potomac and Occoquan Rivers, creating a diverse ecosystem.

    •   The area was once home to a vast oak forest, but only a few remnants remain today.

    •   The Potomac River supports a variety of fish species, including striped bass, white perch, and catfish.

Science

    •   In 1832, the Smithsonian Institution established a meteorological station in Dumfries, which collected data on weather patterns.

    •   The town was also home to the first cotton mill in Virginia, which utilized water power from the Occoquan River.

Personalities

    •   George Washington frequently visited Dumfries, and his troops camped nearby during the Revolutionary War.

    •   The town was home to several prominent scientists, including John Banister, a botanist who discovered several new plant species.

    •   Dr. James Craik, one of Washington's personal physicians, resided in Dumfries and is buried in the town cemetery.

Tourist Attractions
1.Manassas National Battlefield Park

(12 miles from Dumfries): Site of two major Civil War battles, offering guided tours, hiking trails, and a museum.

2.Potomac Mills Mall

(6 miles from Dumfries): One of the largest outlet malls in the United States, with over 200 stores and restaurants.

3.Old Town Alexandria

(15 miles from Dumfries): A charming historic district with cobblestone streets, boutiques, restaurants, and museums along the Potomac River waterfront.

Nearby Cities:

Triangle, VA
Cherry Hill, VADale City, VA
Potomac Mills, VAAquia Harbour, VA
Woodbridge, VAIndependent Hill, VA
Indian Head, MDOccoquan, VA
Potomac Heights, MDStafford, VA
Lorton, VALaurel Hill, VA
Buckhall, VAFort Belvoir, VA
Bryans Road, MDNewington, VA
Baltimore, MD
Washington, DCRichmond, VA
Arlington, VANewport News, VA
Alexandria, VAEast Hampton, VA
Hampton, VAColumbia, MD
Germantown, MDSilver Spring, MD
Centreville, VA