Our Proprietary 10-Day Forecast

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Current warnings over Mattoon, 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 Mattoon, 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 Mattoon, 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 Coles 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 Mattoon, 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 Mattoon, 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 Mattoon, 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 Mattoon, 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 Mattoon, 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 Coles 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)
Mattoon, Illinois Climate Summary

    •   Average Annual Temperature

53.9° F (12.2° C)

    •   Average Annual High Temperature

65.1° F (18.4° C)

    •   Average Annual Low Temperature

42.7° F (5.9° C)

    •   Average Annual Precipitation

39.32 inches (999 mm)

    •   Average Annual Snowfall

19.8 inches (503 mm)

    •   Average Number of Sunny Days

206

    •   Average Number of Rainy Days

106

    •   Average Number of Snowy Days

16

Climate Overview

Mattoon, Illinois has a humid continental climate, with hot, humid summers and cold, dry winters. The average annual temperature is 53.9° F (12.2° C), with average high temperatures in the summer reaching 85° F (29° C) and average low temperatures in the winter dropping to 18° F (-8° C). Precipitation is fairly evenly distributed throughout the year, with an average of 39.32 inches (999 mm) of rain and 19.8 inches (503 mm) of snow falling annually. Mattoon experiences an average of 206 sunny days and 106 rainy days each year.

Summer

Summers in Mattoon are hot and humid, with average high temperatures in July and August reaching 85° F (29° C). The humidity can make the heat feel even more oppressive, with heat index values often exceeding 100° F (38° C). Thunderstorms are common in the summer, and can sometimes produce severe weather, such as hail and strong winds.

Winter

Winters in Mattoon are cold and dry, with average low temperatures in January and February dropping to 18° F (-8° C). The wind chill can make the cold feel even more severe, with wind chill values often dropping below 0° F (-18° C). Snowfall is common in the winter, with an average of 19.8 inches (503 mm) falling annually.

Spring and Fall

Spring and fall in Mattoon are generally mild, with average temperatures ranging from 40° F (4° C) to 70° F (21° C). These seasons are often characterized by variable weather, with periods of warm, sunny days followed by periods of cool, rainy weather.

Climate Change

The climate in Mattoon is changing, as it is in many parts of the world. The average annual temperature has increased by about 1° F (0.6° C) since the late 19th century, and the number of extreme weather events, such as heat waves, droughts, and floods, has increased. These changes are expected to continue in the future, and could have a significant impact on the environment and human health in Mattoon.

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

    •   Mattoon is home to the Embarras River, a tributary of the Wabash River.

    •   The area was once part of a vast prairie ecosystem, now largely converted to agriculture.

    •   The city is located in the Grand Prairie Natural Division, known for its flat topography and fertile soils.

Science

    •   Mattoon is the birthplace of Nobel Prize-winning chemist Donald Cram, known for his work on supramolecular chemistry.

    •   The city is home to the Eastern Illinois University Observatory, which hosts public stargazing events.

Personalities

    •   Mattoon was the hometown of baseball player \

Tourist Attractions
1.Mattoon Public Library**

2.Cross County Mall**

3.Lake Land College**

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