Our Proprietary 10-Day Forecast

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Current warnings over Glen Ellyn, Illinois
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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 Glen Ellyn, Illinois 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 Glen Ellyn, Illinois 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 DuPage County, IL

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 Glen Ellyn, Illinois

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 Glen Ellyn, IL 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 Glen Ellyn, IL

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 Glen Ellyn, IL, 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 Glen Ellyn, Illinois

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 DuPage County, Illinois

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
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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Glen Ellyn, Illinois is located in the Chicago metropolitan area and experiences a continental climate with four distinct seasons.

Summer


    •   Average high temperatures range from 77°F (25°C) in June to 85°F (29°C) in July and August.
    •   Humidity levels are typically high, making the weather feel even warmer.
    •   Occasional thunderstorms can occur, especially in the late afternoon or evening.

Fall


    •   Temperatures gradually cool down from September to November.
    •   Average high temperatures range from 68°F (20°C) in September to 46°F (8°C) in November.
    •   The leaves on the trees change color, creating a beautiful display of fall foliage.

Winter


    •   Winter in Glen Ellyn is cold and snowy.
    •   Average high temperatures range from 32°F (0°C) in December to 26°F (-3°C) in January.
    •   Snowfall averages around 30 inches (76 cm) per year, with the heaviest snowfall occurring in January and February.
    •   Icy conditions and strong winds can also be a hazard during the winter months.

Spring


    •   Spring in Glen Ellyn is mild and transitional.
    •   Temperatures gradually warm up from March to May.
    •   Average high temperatures range from 48°F (9°C) in March to 66°F (19°C) in May.
    •   Rain and thunderstorms become more common as the season progresses.

Overall, Glen Ellyn's climate is characterized by hot, humid summers, cool, colorful autumns, cold, snowy winters, and mild, transitional springs.

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

    •   Glen Ellyn is situated on the scenic DuPage River, providing a natural habitat for various wildlife, including deer, coyotes, and numerous bird species.

    •   The Morton Arboretum, a renowned botanical garden, is located just south of Glen Ellyn, boasting over 1,700 acres of diverse plant life.

    •   Lake Ellyn, a glacial lake, offers recreational activities such as fishing, boating, and birdwatching.

Science

    •   Fermi National Accelerator Laboratory (Fermilab), a world-renowned particle physics research center, is headquartered in Batavia, just west of Glen Ellyn.

    •   The College of DuPage, located in Glen Ellyn, has a strong science program, offering degrees in biology, chemistry, and environmental science.

Personalities

    •   Glen Ellyn was named after Captain John Ellyn, a Civil War veteran who settled in the area in 1868.

    •   Author and naturalist Ernest Thompson Seton lived in Glen Ellyn from 1927 until his death in 1946. His home, \

Tourist Attractions
1. Morton Arboretum: A 1,700-acre arboretum with over 4,200 species of trees and shrubs, including a Japanese garden, a conifer collection, and a prairie restoration area.

2. Cantigny Park: A 500-acre park with gardens, a golf course, a museum, and a zoo. The park is home to the Cantigny First Division Museum, which tells the story of the 1st Infantry Division during World War I and World War II.

3. The Glen Ellyn History Center: A museum that tells the story of Glen Ellyn, Illinois, from its founding in 1834 to the present day. The museum has exhibits on the town's history, architecture, and culture.

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