Our Proprietary 10-Day Forecast

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Current warnings over Round Lake, 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, 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, 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, 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, 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, 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, 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, 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, IL Climate Summary

General Climate

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

Temperature

The average annual temperature in Round Lake is 47.8°F. The warmest month is July, with an average high temperature of 83.9°F and an average low temperature of 62.7°F. The coldest month is January, with an average high temperature of 27.6°F and an average low temperature of 12.9°F.

Precipitation

The average annual precipitation in Round Lake is 36.1 inches. The wettest month is June, with an average rainfall of 4.4 inches. The driest month is February, with an average rainfall of 1.8 inches.

Snowfall

The average annual snowfall in Round Lake is 36.7 inches. The snowiest month is January, with an average snowfall of 10.1 inches.

Wind

The prevailing wind direction in Round Lake is from the west. The average wind speed is 10.2 mph.

Climate Change

The climate in Round Lake is changing, as it is in the rest of the world. The average annual temperature has increased by about 2°F since the late 19th century. The number of days with extreme heat (temperatures above 90°F) has also increased. The average annual precipitation has not changed significantly, but the intensity of rainfall events has increased. This means that there are more days with heavy rain, which can lead to flooding.

Climate Summary Table

| Month | Average High (°F) | Average Low (°F) | Average Precipitation (inches) | Average Snowfall (inches) |
|---|---|---|---|---|
| January | 27.6 | 12.9 | 1.8 | 10.1 |
| February | 32.7 | 16.8 | 1.8 | 6.9 |
| March | 43.1 | 25.6 | 2.6 | 4.9 |
| April | 55.6 | 36.8 | 3.2 | 1.2 |
| May | 67.3 | 47.4 | 3.7 | 0.1 |
| June | 78.3 | 58.6 | 4.4 | 0.0 |
| July | 83.9 | 62.7 | 3.7 | 0.0 |
| August | 82.0 | 61.1 | 3.3 | 0.0 |
| September | 73.5 | 52.9 | 3.0 | 0.0 |
| October | 60.8 | 41.4 | 2.6 | 0.2 |
| November | 45.4 | 30.2 | 2.5 | 1.4 |
| December | 33.5 | 19.1 | 2.5 | 5.9 |

Sources

    •   National Oceanic and Atmospheric Administration (NOAA)
    •   Midwestern Regional Climate Center (MRCC)
    •   Illinois State Climatologist

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

    •   Round Lake is home to the Round Lake Marsh, a 1,000-acre wetland complex that is a haven for wildlife, including over 200 bird species.

    •   The marsh is fed by the Des Plaines River, which flows through the lake and provides a vital water source for the ecosystem.

    •   The lake is also home to several rare and endangered species, including the Blanding's turtle and the eastern massasauga rattlesnake.

Science

    •   Round Lake was a center for scientific research in the early 20th century.

    •   The Round Lake Biological Laboratory, founded in 1894, was a renowned institution that attracted scientists from around the world.

    •   Scientists at the laboratory made significant contributions to the fields of ecology, genetics, and limnology (the study of lakes).

Personalities

    •   Dr. Henry Chandler Cowles, a pioneer in the field of ecology, was a professor at the Round Lake Biological Laboratory.

    •   Dr. Warder Clyde Allee, a renowned ecologist and animal behaviorist, also worked at the laboratory.

    •   The actress Jane Addams, a Nobel Peace Prize winner and social reformer, had a summer home in Round Lake.

Tourist Attractions
1.Round Lake Beach

- A beautiful beach on the shores of Round Lake, offering swimming, boating, fishing, and picnicking.

2.Round Lake Historical Museum

- A museum dedicated to preserving the history of Round Lake and the surrounding area.

3.Hawthorn Woods Country Club

- A prestigious golf course and country club, offering challenging golf, fine dining, and other amenities.

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