Our Proprietary 10-Day Forecast

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Current warnings over Chester, 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 Chester, 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 Chester, 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 Randolph 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 Chester, 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 Chester, 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 Chester, 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 Chester, 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 Chester, 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 Randolph 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)
Chester, Illinois Climate Summary

Average Temperature

56.5°F (13.6°C)

Average High Temperature

68.2°F (20.1°C)

Average Low Temperature

44.8°F (7.1°C)

Record High Temperature

117°F (47.2°C)

Record Low Temperature

-27°F (-32.8°C)

Average Annual Precipitation

44.5 inches (113 cm)

Average Snowfall

14.1 inches (36 cm)

Average Number of Rainy Days

107

Average Number of Snowy Days

11

Climate Zone

Humid subtropical climate (Cfa)

Köppen Climate Classification

Dfa

Hardiness Zone

6a

Growing Season

180 days

Chester, Illinois has a humid subtropical climate, with hot, humid summers and mild winters. The average temperature in July is 79.2°F (26.2°C), while the average temperature in January is 31.9°F (-0.6°C). The area receives an average of 44.5 inches (113 cm) of precipitation per year, with the majority of it falling in the spring and summer months. Snowfall is relatively light, averaging 14.1 inches (36 cm) per year.

The growing season in Chester, Illinois lasts for about 180 days, from early April to late October. The area is well-suited for growing a variety of crops, including corn, soybeans, wheat, and hay. Fruits and vegetables also grow well in the area.

Chester, Illinois is located in a climate zone that is prone to severe weather, including tornadoes, hailstorms, and thunderstorms. The area is also at risk for flooding, especially during the spring and summer months.

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

    •   Chester is located in the Shawnee Hills, a region known for its rugged terrain and diverse flora and fauna.

    •   The Mississippi River forms the western border of the city, providing a habitat for numerous aquatic species.

    •   Bald eagles nest along the riverbanks, and the city hosts an annual Eagle Days festival.

Science

    •   Chester was home to the first coal mine in Illinois, established in 1818.

    •   The city's coal industry played a significant role in the development of the Midwest.

    •   Today, Chester is a center for renewable energy, with a wind farm and solar array.

Personalities

    •   Chester was the birthplace of Dr. William Beaumont, a pioneering surgeon who conducted groundbreaking experiments on digestion.

    •   The city is also associated with frontiersman Daniel Boone, who visited the area in the 18th century.

    •   Chester native John A. Logan served as a general in the Union Army during the Civil War and later as a U.S. Senator.

Tourist Attractions
1.Fort Kaskaskia State Historic Site

- This site is the reconstructed remains of Fort Kaskaskia, which was built by the French in 1756. The fort was an important military post during the French and Indian War and the American Revolutionary War. Today, the site features a museum, a reconstructed fort, and a picnic area.

2.Giant City State Park

- This park is home to some of the largest sandstone formations in Illinois. The park offers hiking trails, camping, and fishing.

3.Touch of Nature Environmental Center

- This center is a 3,000-acre nature preserve that offers hiking trails, a nature center, and a butterfly garden.

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