Our Proprietary 10-Day Forecast

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Current warnings over Williamsville, 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 Williamsville, 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 Williamsville, 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 Sangamon 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 Williamsville, 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 Williamsville, 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 Williamsville, 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 Williamsville, 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 Williamsville, 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 Sangamon 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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Williamsville, IL Climate Summary

Average Temperature

    •   January: 27°F (-3°C)
    •   July: 78°F (26°C)
    •   Annual Average: 52°F (11°C)

Precipitation

    •   Average Annual Precipitation: 36 inches (91 cm)
    •   Average Snowfall: 25 inches (64 cm)

Humidity

    •   Average Annual Humidity: 75%

Wind

    •   Average Wind Speed: 10 mph (16 km/h)

Climate Type

    •   Humid continental climate

Growing Season

    •   Average Frost-Free Period: 160 days

Climate Summary

Williamsville, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters. The average annual temperature is 52°F (11°C), with average temperatures ranging from 27°F (-3°C) in January to 78°F (26°C) in July. The average annual precipitation is 36 inches (91 cm), with most of the precipitation occurring during the spring and summer months. The average annual snowfall is 25 inches (64 cm). The average annual humidity is 75%. The average wind speed is 10 mph (16 km/h). The growing season in Williamsville lasts for an average of 160 days.

Climate Variability

The climate in Williamsville is variable from year to year. Temperatures can fluctuate significantly from the average, and precipitation can be unpredictable. In some years, Williamsville may experience extreme weather events, such as droughts, floods, or tornadoes.

Climate Change

The climate in Williamsville is changing. The average annual temperature has increased by about 1°F (0.6°C) since the late 19th century. The average annual precipitation has also increased slightly. These changes are consistent with the global trend of climate change.

Climate Impacts

The changing climate is having a number of impacts on Williamsville. These impacts include:

    •   More extreme weather events, such as droughts, floods, and tornadoes
    •   Longer and hotter summers
    •   Shorter and milder winters
    •   Changes in plant and animal life
    •   Increased risk of flooding and erosion
    •   Increased demand for water and energy

Climate Adaptation

The community of Williamsville is taking steps to adapt to the changing climate. These steps include:

    •   Investing in infrastructure to protect against flooding and erosion
    •   Developing drought preparedness plans
    •   Promoting energy efficiency and renewable energy
    •   Planting trees and other vegetation to help cool the community
    •   Educating the public about climate change and its impacts

By taking these steps, the community of Williamsville is working to reduce its vulnerability to the impacts of climate change.

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

    •   Williamsville lies within the Grand Prairie Natural Division, known for its vast grasslands and wetlands.

    •   The Sangamon River, a tributary of the Illinois River, flows through the area, providing habitat for diverse aquatic species.

Science

    •   The Williamsville Biological Station was established in 1930 by the Illinois Natural History Survey. It has been a hub for ecological research and education for nearly a century.

    •   The station's 5,000-acre preserve protects a wide range of habitats, including wetlands, prairies, and forests.

Personalities

  • Stephen A. Forbes:

    A renowned entomologist and ecologist, Forbes served as the first director of the Illinois Natural History Survey. He conducted groundbreaking research on insects and their impact on agriculture.

  • Charles C. Adams:

    A prominent ornithologist and conservationist, Adams was a key figure in the establishment of the Williamsville Biological Station. He authored numerous publications on bird behavior and ecology.

    • Tourist Attractions
    1.Lincoln Home National Historic Site

    (Springfield, IL): The home of Abraham Lincoln and his family from 1844 to 1861. Visitors can tour the home, learn about Lincoln's life, and see artifacts from his presidency.

    2.Abraham Lincoln Presidential Library and Museum

    (Springfield, IL): A museum dedicated to the life and legacy of Abraham Lincoln. Visitors can see exhibits on Lincoln's childhood, political career, and assassination.

    3.Dana-Thomas House

    (Springfield, IL): A Frank Lloyd Wright-designed house built in 1902. Visitors can tour the house and learn about Wright's architectural style.

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