Our Proprietary 10-Day Forecast

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Current warnings over Round Lake Park, 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 Round Lake Park, 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 Round Lake Park, 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 Lake 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 Round Lake Park, 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 Round Lake Park, 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 Round Lake Park, 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 Round Lake Park, 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 Round Lake Park, 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 Lake 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)
Round Lake Park, Illinois Climate Summary

General Climate


Round Lake Park, Illinois experiences a humid continental climate, characterized by hot, humid summers and cold, snowy winters. The city is located in USDA hardiness zone 5b, meaning that the average annual minimum temperature is between -15°F and -10°F.

Temperature

    •   Average Annual Temperature

47.7°F (8.7°C)

    •   Average Summer Temperature (June-August)

73.4°F (23°C)

    •   Average Winter Temperature (December-February)

26.6°F (-3°C)

    •   Record High Temperature

107°F (41.7°C)

    •   Record Low Temperature

-30°F (-34.4°C)

Precipitation

    •   Average Annual Precipitation

35.4 inches (89.9 cm)

    •   Average Snowfall

34.1 inches (86.6 cm)

    •   Average Number of Rainy Days

106 days

    •   Average Number of Snowy Days

22 days

Humidity

    •   Average Annual Relative Humidity

73%

    •   Average Summer Relative Humidity

78%

    •   Average Winter Relative Humidity

69%

Wind

    •   Average Annual Wind Speed

10.5 mph (16.9 km/h)

    •   Prevailing Wind Direction

West

Climate Extremes

    •   Highest Recorded Temperature

107°F (41.7°C) on July 14, 1936

    •   Lowest Recorded Temperature

-30°F (-34.4°C) on January 20, 1985

    •   Wettest Year

51.6 inches (131.1 cm) in 1983

    •   Driest Year

18.9 inches (48 cm) in 1963

    •   Snowiest Year

76.4 inches (194 cm) in 1978-1979

    •   Least Snowy Year

3.0 inches (7.6 cm) in 2011-2012

Overall, Round Lake Park, Illinois has a humid continental climate with hot, humid summers and cold, snowy winters. The city experiences moderate precipitation throughout the year, with occasional extreme weather events such as heavy snowfall or thunderstorms.

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

    •   Round Lake Park is home to the Round Lake Area Park District's Nature Center, which offers educational programs and exhibits on local flora and fauna.

    •   The park features a 35-acre wetland restoration project, providing habitat for diverse wildlife, including migratory birds and amphibians.

    •   The park is part of the Des Plaines River Watershed, which flows through the area and supports a variety of aquatic life.

Personalities

  • Dr. Edward L. Trudeau:

    The founder of the Trudeau Sanatorium for tuberculosis patients in Saranac Lake, New York, was a frequent visitor to Round Lake Park in the early 1900s. He believed the fresh air and natural beauty of the area were beneficial for his patients.

  • Dr. John B. Murphy:

    A renowned surgeon and pioneer in the field of thoracic surgery, Dr. Murphy had a summer home in Round Lake Park from 1910 to 1919.

  • Ernest Hemingway:

    The famous author spent his childhood summers in nearby Winnetka, Illinois, and is said to have visited Round Lake Park on occasion.

  • Tourist Attractions
    1.Six Flags Great America

    (Gurnee, IL): A sprawling amusement park featuring thrilling roller coasters, water rides, and live entertainment.

    2.Round Lake Beach

    (Round Lake Beach, IL): A scenic beach along Lake Michigan with a sandy shoreline, picnic areas, and a fishing pier.

    3.Hawthorn Woods Country Club

    (Hawthorn Woods, IL): A prestigious golf course designed by renowned architect Pete Dye, known for its challenging layout and picturesque surroundings.

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