Our Proprietary 10-Day Forecast

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Current warnings over Sycamore, 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 Sycamore, 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 Sycamore, 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 DeKalb 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 Sycamore, 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 Sycamore, 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 Sycamore, 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 Sycamore, 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 Sycamore, 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 DeKalb 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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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)
Sycamote, Illinois Climate Summary

Average Annual Temperature

50.6° F (10.4° C)
    •   January: 24.9° F (-4.2° C)
    •   July: 75.4° F (24.1° C)

Average Annual Precipiation

35.4 inches (900 mm)
    •   Driest Month: February (1.7 inches)
    •   Wettest Month: June (4.3 inches)

Average Annual Snowfall

30.6 inches (78 cm)
    •   Most Snow: January (8.7 inches)
    •   Least Snow: April (0.4 inches)

USDA Hardiness Zone

5a

General Climate


    •   Sycamore, Illinois has a humid contienental climate with warm, humid summers and cold, dry wibters.
    •   The average annual temperature is 50.6° F (10.4° C), with a range from 24.9° F (-4.2° C) in January to 75.4° F (24.1° C) in July.
    •   The average annual precipiation is 35.4 inches (900 mm), with most rain falling in the summer months.
    •   The average annual snow fall is 30.6 inches (78 cm), with most snow falling in January.
    •   The growing season in Sycamore, Illinois is typically 150-180 days, from late April to early October.

Extreme Weather Events


    •   Sycamore, Illinois is located in an area that is occassionally affected by severe weather events, such as tornadoes, hailstorms, and thunderstorms.
    •   In 2015, a severe thunderstorm caused widespread damage in Sycamore, with winds gusting up to 70 miles per hour and hail the size of golf balls.
    •   In 2017, a tomado touched down in Sycamore, causing significant damage to homes and businesses.

Overall


Sycamote, Illinois has a humid contienental climate with warm, humid summers and cold, dry wibters. The average annual temperature is 50.6° F (10.4° C), with a range from 24.9° F (-4.2° C) in January to 75.4° F (24.1° C) in July. The average annual precipiation is 35.4 inches (900 mm), with most rain falling in the summer months. The average annual snow fall is 30.6 inches (78 cm), with most snow falling in January. The growing season in Sycamore, Illinois is typically 150-180 days, from late April to early October.

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

    •   Sycamore is home to the Kishwaukee River, a tributary of the Rock River.

    •   The city is located in the Northern Illinois Drift Plain, a region formed by glaciers during the last ice age.

    •   The area was once a vast prairie, but farming and development have transformed it into a mix of agricultural and urban landscapes.

Science

    •   Sycamore is the site of Northern Illinois University (NIU), a major research university with a strong focus on science and engineering.

    •   NIU's Center for the Study of Climate Change is a leading research center on climate change and its impacts.

    •   The city is also home to the Fermi National Accelerator Laboratory (Fermilab), one of the world's largest particle physics research facilities.

Personalities

    •   The renowned physicist Enrico Fermi worked at Fermilab from its founding in 1967 until his death in 1954.

    •   The Nobel Prize-winning chemist Linus Pauling was born in Sycamore in 1901.

    •   The city is also the birthplace of the inventor of the electric typewriter, Christopher Latham Sholes.

Tourist Attractions
1.Sycamore Pumpkin Festival:

Held annually in October, this festival celebrates the town's pumpkin-growing heritage with a parade, pumpkin carving contest, and other family-friendly activities.

2.Sycamore State Park:

A 1,100-acre park featuring scenic trails, a lake for fishing and boating, and a historic grist mill.

3.DeKalb County History Center:

Located in nearby DeKalb, this museum showcases the history of the county through exhibits on agriculture, industry, and culture.

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