Our Proprietary 10-Day Forecast

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Current warnings over Williamsburg, Pennsylvania
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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 Williamsburg, Pennsylvania 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 Williamsburg, Pennsylvania 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 Armstrong County, PA

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 Williamsburg, Pennsylvania

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 Williamsburg, PA 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 Williamsburg, PA

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 Williamsburg, PA, 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 Williamsburg, Pennsylvania

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 Armstrong County, Pennsylvania

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.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • 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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Williamsburg, PA Climate Summary

Location

Huntingdon County, Pennsylvania

Climate Zone

Humid Continental Climate (Dfa)

Average Temperature

    •   Annual: 48.6°F (9.2°C)
    •   Winter (December-February): 29.6°F (-1.3°C)
    •   Spring (March-May): 46.9°F (8.3°C)
    •   Summer (June-August): 68.7°F (20.4°C)
    •   Fall (September-November): 53.5°F (11.9°C)

Average Precipitation

    •   Annual: 42.5 inches (1080 mm)
    •   Winter: 11.2 inches (284 mm)
    •   Spring: 10.8 inches (274 mm)
    •   Summer: 11.3 inches (287 mm)
    •   Fall: 9.2 inches (234 mm)

Snowfall

    •   Annual: 30.8 inches (78 cm)
    •   Winter: 24.2 inches (61 cm)

Other Climate Characteristics

    •   Humidity

High throughout the year, especially in summer.

    •   Wind

Prevailing winds are from the west and southwest.

    •   Sunshine

Receives an average of 200 sunny days per year.

    •   Extreme Weather

Occasional thunderstorms, hail, and tornadoes can occur in spring and summer. Heavy snowfall is possible in winter.

Climate Trends

    •   Williamsburg has experienced a slight warming trend in recent decades.
    •   Precipitation patterns have become more variable, with heavier rainfall events becoming more common.
    •   The frequency and intensity of extreme weather events, such as heat waves and droughts, are also increasing.

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

    •   Williamsburg is home to the Williamsburg Reservoir, a 2,600-acre lake that provides drinking water to over 2 million people in central Pennsylvania.

    •   The area is rich in fossils, including marine invertebrates, plants, and reptiles from the Devonian period (419-359 million years ago).

Science

    •   In 1865, the Williamsburg Astronomical Observatory was established, one of the first observatories in the United States.

    •   The observatory was used to study the transit of Venus in 1874, a rare celestial event that helped scientists determine the distance between Earth and the Sun.

Personalities

  • James Buchanan:

    The 15th President of the United States was born in Cove Gap, near Williamsburg, in 1791.

  • Henry Wallace:

    The 33rd Vice President of the United States was born in Williamsburg in 1866. He was a prominent agricultural scientist and politician.

  • Rachel Carson:

    The influential environmentalist and author of \

    • Tourist Attractions
    1.Bushy Run Battlefield Historic Park

    (Harrison City, PA): A 207-acre park that commemorates the Battle of Bushy Run, a pivotal battle in the French and Indian War. Visitors can explore the battlefield, hike on trails, and visit the park's museum.

    2.Kennywood Park

    (West Mifflin, PA): A historic amusement park with over 40 rides, attractions, and shows. Kennywood is known for its classic wooden roller coasters, including the Jack Rabbit and the Phantom's Revenge.

    3.Fallingwater

    (Mill Run, PA): A UNESCO World Heritage Site designed by renowned architect Frank Lloyd Wright. Fallingwater is a stunning example of organic architecture, blending seamlessly into its natural surroundings. Visitors can tour the house and explore the surrounding grounds.

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