Our Proprietary 10-Day Forecast

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Current warnings over Allendale, New Jersey
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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 Allendale, New Jersey 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 Allendale, New Jersey 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 Bergen County, NJ

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 Allendale, New Jersey

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 Allendale, NJ 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 Allendale, NJ

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 Allendale, NJ, 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 Allendale, New Jersey

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 Bergen County, New Jersey

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:
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  • 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)
Allendale, New Jersey Climate Summary

General Climate

Humid subtropical climate with hot, humid summers and cold, snowy winters.

Average Temperatures

    •   January

29.2°F (-1.6°C)

    •   July

75.3°F (24.1°C)

    •   Annual Average

52.3°F (11.3°C)

Precipitation

    •   Average Annual Precipitation

45.9 inches (1166 mm)

    •   Average Snowfall

24.9 inches (63 cm)

    •   Wettest Month

July (5.1 inches or 130 mm)

    •   Driest Month

February (2.6 inches or 66 mm)

Humidity

    •   Average Relative Humidity

69%

    •   Highest Humidity

Summer months (75-80%)

    •   Lowest Humidity

Winter months (60-65%)

Wind

    •   Prevailing Wind Direction

Northwest

    •   Average Wind Speed

9 mph (14 km/h)

Sunshine

    •   Average Annual Sunshine

2,600 hours

    •   Sunniest Month

July (300 hours)

    •   Cloudiest Month

December (150 hours)

Extreme Weather

    •   Hurricanes

Allendale is located in a hurricane-prone area and can experience occasional hurricanes or tropical storms.

    •   Blizzards

Winter storms can bring heavy snowfall and strong winds.

    •   Thunderstorms

Thunderstorms are common during the summer months and can produce hail, lightning, and heavy rain.

Climate Change Impacts

    •   Rising temperatures: Allendale is projected to experience an increase in average temperatures in the future.
    •   Increased precipitation: The area is likely to experience more frequent and intense rainfall events.
    •   Sea level rise: Allendale is located near the coast and may be vulnerable to sea level rise and coastal flooding.

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

    •   The Ramapo Valley is home to a diverse ecosystem, including over 1,000 plant species and 200 bird species.

    •   The Ramapo River, which flows through Allendale, is a designated Wild and Scenic River.

    •   The area is known for its scenic waterfalls, including the Ramapo Falls and the Upper and Lower Cascades.

Science

    •   Thomas Edison established a research laboratory in Allendale in 1887, where he developed the phonograph and other inventions.

    •   The borough is home to the Ramapo College of New Jersey, a public liberal arts college founded in 1969.

Personalities

    •   Thomas Edison spent his final years in Allendale, where he died in 1931.

    •   Other notable residents have included the inventor Nikola Tesla and the actress Marilyn Monroe.

    •   Allendale was the birthplace of the Pulitzer Prize-winning author John Updike.

Tourist Attractions
1.Ramapo Valley County Reservation

is a 3,000-acre park located in Bergen County, New Jersey. The park features hiking trails, picnic areas, a lake, and a golf course.

2.Norvin Green State Forest

is a 4,500-acre forest located in Passaic County, New Jersey. The forest features hiking trails, camping areas, and a lake.

3.The Hermitage

is a historic mansion located in Ho-Ho-Kus, New Jersey. The mansion was built in 1779 and is now a museum.

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Waldwick, NJWoodcliff Lake, NJ
Ho-Ho-Kus, NJWyckoff, NJ
Mahwah, NJMidland Park, NJ
Park Ridge, NJRidgewood, NJ
Airmont, NYChestnut Ridge, NY
Franklin Lakes, NJHillsdale, NJ
Montvale, NJPearl River, NY
Brooklyn, NY
Queens, NYManhattan, NY
Philadelphia, PAManhattan, NY
Staten Island, NYNewark, NJ
Jersey City, NJJamaica, NY
Yonkers, NYEast Flatbush, NY
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