Our Proprietary 10-Day Forecast

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Current warnings over Knox, 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 Knox, 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 Knox, 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 Clarion 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 Knox, 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 Knox, 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 Knox, 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 Knox, 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 Knox, 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 Clarion 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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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)
Knox, PA Climate Summary

General Climate


    •   Humid continental climate
    •   Warm, humid summers
    •   Cold, snowy winters

Temperature


    •   Average annual temperature: 49.7°F (9.8°C)
    •   Average summer temperature (June-August): 70.3°F (21.3°C)
    •   Average winter temperature (December-February): 25.4°F (-3.7°C)
    •   Record high temperature: 102°F (38.9°C)
    •   Record low temperature: -24°F (-31.1°C)

Precipitation


    •   Average annual precipitation: 41.2 inches (104.6 cm)
    •   Average snowfall: 49.8 inches (126.5 cm)
    •   Wettest month: June (4.4 inches or 11.2 cm)
    •   Driest month: February (2.3 inches or 5.8 cm)

Humidity


    •   Average annual relative humidity: 73%
    •   Highest humidity: Summer months (above 80%)
    •   Lowest humidity: Winter months (below 60%)

Wind


    •   Prevailing wind direction: West-southwest
    •   Average wind speed: 9.2 mph (14.8 km/h)
    •   Strongest winds: Winter months

Sunshine


    •   Average annual sunshine: 2,052 hours
    •   Sunniest month: July (270 hours)
    •   Cloudiest month: December (123 hours)

Other Climate Features


    •   Tornado activity: Rare, but possible
    •   Thunderstorms: Common in summer months
    •   Fog: Occasional, especially in fall and winter
    •   Ice storms: Occasionally occur during winter months

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

    •   Knox is situated on the Allegheny River, a major tributary of the Ohio River.

    •   The area is home to a variety of wildlife, including white-tailed deer, black bears, and bald eagles.

    •   The Knox-Shippenville Black Ash Swamp is a rare ecosystem that supports a diverse plant and animal community.

Science

    •   Knox was the site of the first oil well drilled in Pennsylvania in 1859.

    •   The town played a significant role in the development of the oil industry in the United States.

    •   The Knox Oil Field is still active today and produces a significant amount of oil and gas.

Personalities

  • Samuel Van Syckel:

    A native of Knox who served as a general in the Union Army during the Civil War.

  • William McKinley:

    The 25th President of the United States was born in Niles, Ohio, just across the river from Knox.

  • John Knox:

    A Scottish religious reformer who is the namesake of the town.

    • Tourist Attractions
    1.Allegheny River Trail

    (Knox, PA): This scenic 32-mile paved trail follows the Allegheny River, offering stunning views of the river, forests, and mountains. It's perfect for hiking, biking, and cross-country skiing.

    2.Cook Forest State Park

    (Clarion, PA): Just a short drive from Knox, Cook Forest State Park is known for its towering old-growth forest, including the world's largest stand of eastern hemlocks. The park offers hiking trails, waterfalls, and a scenic drive.

    3.Oil City, PA

    (Oil City, PA): Located about 30 minutes from Knox, Oil City was once the epicenter of the American oil industry. Today, it's home to the Drake Well Museum and Park, which tells the story of the first successful oil well in the United States.

    Nearby Cities:

    Marianne, PA
    Clarion, PASeneca, PA
    Woodland Heights, PAOil City, PA
    Franklin, PAChicora, PA
    Sugarcreek, PABrookville, PA
    Cleveland, OH
    Pittsburgh, PABuffalo, NY
    Akron, OHErie, PA
    Parma, OHCheektowaga, NY
    Canton, OHYoungstown, OH
    Lakewood, OHCuyahoga Falls, OH
    Euclid, OH