Our Proprietary 10-Day Forecast

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Current warnings over Harvey, 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 Harvey, 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 Harvey, 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 Cook 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Cook 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)
Harvey, Illinois Climate Summary

General Climate

Harvey, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters. The city experiences all four seasons, with average temperatures ranging from 28°F in January to 78°F in July. Precipitation is fairly evenly distributed throughout the year, with an average of 35 inches of rain and snow combined.

Summer

Summers in Harvey are hot and humid, with average temperatures in the mid-70s to low 80s. The hottest month is July, with an average temperature of 78°F. Heat waves are common, with temperatures sometimes reaching into the 90s or even 100s. Humidity levels are also high, making it feel even hotter.

Winter

Winters in Harvey are cold and snowy, with average temperatures in the mid-20s to low 30s. The coldest month is January, with an average temperature of 28°F. Snowfall is common, with an average of 20 inches per year. Blizzards and ice storms are also possible.

Spring and Fall

Spring and fall in Harvey are mild and transitional seasons. Temperatures in the spring average in the 40s and 50s, while temperatures in the fall average in the 50s and 60s. Precipitation is also common during these seasons, with rain and thunderstorms possible.

Climate Change

Climate change is having an impact on the climate of Harvey, Illinois. The city is experiencing warmer temperatures, more extreme weather events, and changes in precipitation patterns. These changes are expected to continue in the future, making it important for residents to take steps to adapt to the changing climate.

Overall

Harvey, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters. The city experiences all four seasons, with average temperatures ranging from 28°F in January to 78°F in July. Precipitation is fairly evenly distributed throughout the year, with an average of 35 inches of rain and snow combined. Climate change is having an impact on the climate of Harvey, Illinois, and these changes are expected to continue in the future.

Facts & Historical Information
(made with AI, use with caution)
Harvey, Illinois, holds a rich natural and scientific heritage:

  • Native American History:

    The area was home to the Potawatomi and Kickapoo tribes, who relied on the Little Calumet River for sustenance and transportation.

  • Industrial Revolution:

    Harvey played a pivotal role in the early 20th-century industrial boom, becoming a hub for manufacturing and transportation. The city's nickname, \

    • Tourist Attractions
    1.Ravisloe Country Club:

    A historic golf course and event venue that dates back to 1929. The club features a challenging 18-hole course, a beautiful clubhouse, and stunning views of the surrounding countryside.

    2.Tinley Park Convention Center:

    A large convention center that hosts a variety of events throughout the year, including trade shows, conferences, and concerts. The center is located in the heart of Tinley Park, just a short drive from Harvey.

    3.Hollywood Casino Amphitheatre:

    An outdoor concert venue that hosts a variety of musical acts throughout the summer months. The amphitheater is located in Tinley Park, just a short drive from Harvey.

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