Our Proprietary 10-Day Forecast

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Current warnings over Williamsport, 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 Williamsport, 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 Williamsport, 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 Northampton 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 Williamsport, 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 Williamsport, 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 Williamsport, 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 Williamsport, 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 Williamsport, 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 Northampton 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.
 
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  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
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  • GEFS, GEPS, MOGREPS & European Ensembles
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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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Williamsport, Pennsylvania

Climate Summary

General Climate

Humid continental climate with warm, humid summers and cold, snowy winters.

Average Temperature

    •   Annual: 50.8°F (10.4°C)
    •   Summer (June-August): 72.6°F (22.6°C)
    •   Winter (December-February): 28.9°F (-1.7°C)

Average Precipitation

    •   Annual: 41.6 inches (1057 mm)
    •   Summer: 12.8 inches (325 mm)
    •   Winter: 12.5 inches (318 mm)

Snowfall

    •   Annual: 51.4 inches (1306 mm)
    •   Heaviest snowfall months: January and February

Sunshine

    •   Annual: 2,150 hours
    •   Sunniest months: June and July

Humidity

    •   Average relative humidity: 72%
    •   Highest humidity months: June and July

Wind

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

Climate Extremes

    •   Highest recorded temperature: 105°F (40.6°C)
    •   Lowest recorded temperature: -24°F (-31.1°C)
    •   Wettest year on record: 2018 (61.9 inches)
    •   Driest year on record: 1930 (24.8 inches)

Climate Trends

    •   Temperatures have been rising over the past century, with an increase of about 2°F (1.1°C) since 1900.
    •   Precipitation has also been increasing, with an increase of about 5 inches (127 mm) since 1900.
    •   The number of extreme weather events, such as heat waves and heavy rainfall, has also been increasing.

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

    •   Williamsport is located at the confluence of the West Branch Susquehanna River and Lycoming Creek, creating a diverse ecosystem.

    •   The city is home to the Susquehanna River Valley Heritage Trail, a 30-mile paved trail that follows the river's edge.

    •   The nearby Susquehanna State Park offers opportunities for hiking, fishing, and wildlife viewing.

Science

    •   Williamsport was the birthplace of James McHenry, a signer of the U.S. Constitution and Secretary of War under President George Washington.

    •   The city is home to the Peter Herdic Transportation Museum, which showcases the history of transportation, including locomotives and automobiles.

    •   The Williamsport Area School District has a strong STEM program, with students participating in robotics competitions and science fairs.

Personalities

    •   Actor Jason Segel, known for his roles in \

Tourist Attractions
1.Peter J. McGovern Little League Museum:

This museum is dedicated to the history of Little League Baseball and features exhibits on the organization's founders, teams, and players. Visitors can also take a tour of the Little League World Series complex.

2.Lycoming College:

This private liberal arts college is located in Williamsport and offers a variety of attractions for visitors, including the Thomas T. Taber Museum of Art, the Mary H. Welch Center for the Arts, and the Lamade Stadium.

3.Hiawatha Island Park:

This park is located on the Susquehanna River and offers a variety of recreational activities, including hiking, biking, fishing, and boating. The park also features a playground, a picnic area, and a boat launch.

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