Our Proprietary 10-Day Forecast

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Current warnings over Algonquin, 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 Algonquin, 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 Algonquin, 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 McHenry 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 Algonquin, 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 Algonquin, 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 Algonquin, 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 Algonquin, 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 Algonquin, 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 McHenry 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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Climate Summary
(made with AI, use with caution)
Algonquin, Illinois Climate Summary

General Climate

    •   Algonquin, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters.
    •   The average annual temperature is 48.4°F (9.1°C).
    •   The average annual precipitation is 36.06 inches (91.6 cm).

Summer

    •   The average summer temperature is 72.2°F (22.3°C).
    •   The average high temperature in July is 83.7°F (28.7°C).
    •   The average low temperature in July is 60.7°F (15.9°C).
    •   The average precipitation in July is 3.54 inches (9.0 cm).

Winter

    •   The average winter temperature is 24.6°F (-4.1°C).
    •   The average high temperature in January is 29.7°F (-1.3°C).
    •   The average low temperature in January is 19.5°F (-6.9°C).
    •   The average precipitation in January is 2.03 inches (5.2 cm).

Spring and Fall

    •   The average spring temperature is 48.1°F (8.9°C).
    •   The average high temperature in April is 59.2°F (15.1°C).
    •   The average low temperature in April is 37.0°F (2.8°C).
    •   The average precipitation in April is 3.23 inches (8.2 cm).
    •   The average fall temperature is 48.7°F (9.3°C).
    •   The average high temperature in October is 60.6°F (15.9°C).
    •   The average low temperature in October is 36.8°F (2.7°C).
    •   The average precipitation in October is 2.91 inches (7.4 cm).

Climate Extremes

    •   The highest temperature ever recorded in Algonquin was 107°F (41.7°C) on July 14, 1934.
    •   The lowest temperature ever recorded in Algonquin was -33°F (-36.1°C) on January 16, 1982.
    •   The greatest amount of precipitation ever recorded in Algonquin in a single month was 11.88 inches (30.2 cm) in July 1957.
    •   The greatest amount of snow ever recorded in Algonquin in a single month was 34.0 inches (86.4 cm) in February 1965.

Climate Change

    •   The climate of Algonquin is changing, as it is in the rest of the world.
    •   The average annual temperature has increased by about 2°F (1.1°C) since the late 19th century.
    •   The average annual precipitation has also increased, by about 5 inches (13 cm).
    •   These changes are expected to continue in the future, with the average annual temperature increasing by another 2-4°F (1.1-2.2°C) by the end of the century.
    •   The average annual precipitation is also expected to increase, by about 1-2 inches (2.5-5.1 cm).

Impacts of Climate Change

    •   The impacts of climate change are already being felt in Algonquin.
    •   The growing season is getting longer, which is allowing some plants and animals to thrive.
    •   However, other plants and animals are struggling to adapt to the changing climate.
    •   The increase in precipitation is also leading to more flooding and erosion.
    •   The increase in temperature is also making it more difficult to keep cool in the summer.

Adaptation and Mitigation

    •   The Village of Algonquin is taking steps to adapt to and mitigate the impacts of climate change.
    •   The village is working to reduce its greenhouse gas emissions, which are a major contributor to climate change.
    •   The village is also working to improve its infrastructure to make it more resilient to the impacts of climate change, such as flooding and extreme heat.
    •   The village is also working to educate its residents about climate change and how they can help to reduce their impact on the environment.

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

    •   Algonquin is situated on the Fox River, a vital waterway for Native American tribes and early settlers.

    •   The area boasts diverse ecosystems, including wetlands, prairies, and forests.

    •   The Algonquin National Golf Club is renowned for its scenic beauty and challenging course, designed by renowned architect Pete Dye.

Science

    •   Fermi National Accelerator Laboratory (Fermilab) is located nearby, a world-renowned research facility in high-energy physics.

    •   The McHenry County Conservation District manages over 20,000 acres of natural areas, including the Volo Bog State Natural Area, a unique ecosystem with rare plants and wildlife.

Personalities

    •   Chief Shabbona, a Potawatomi leader, played a key role in negotiating treaties and protecting Native American rights in the area.

    •   George W. Hunt, the first governor of Arizona, was born in Algonquin in 1859.

    •   The town is named after the Algonquian-speaking Native American tribes who originally inhabited the region.

Tourist Attractions
1.Algonquin Commons Park:

A sprawling park featuring a scenic lake, walking trails, playgrounds, and a carousel.

2.The Dole:

A historic mansion and estate with beautiful gardens, a museum, and a restaurant.

3.Prairie View Golf Course:

A challenging and scenic golf course with rolling hills and mature trees.

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