Our Proprietary 10-Day Forecast

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Current warnings over Trenton, 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 Trenton, 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 Trenton, 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 Clinton 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 Trenton, 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 Trenton, 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 Trenton, 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 Trenton, 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 Trenton, 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 Clinton 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)
Trenton, Illinois has a humid continental climate with hot, humid summers and cold, dry winters. The average high temperature in July is 86°F (30°C), while the average low temperature in January is 19°F (-7°C). The city receives an average of 41 inches (104 cm) of precipitation per year, which is fairly evenly distributed throughout the year.

Summer


Summer in Trenton is hot and humid, with average high temperatures in the mid-80s (°F) and average low temperatures in the mid-60s (°F). The city experiences occasional heat waves, with temperatures reaching into the 90s (°F) or even 100s (°F). Thunderstorms are common in the summer, and can sometimes produce severe weather, such as hail, strong winds, and tornadoes.

Winter


Winter in Trenton is cold and dry, with average high temperatures in the mid-30s (°F) and average low temperatures in the mid-20s (°F). The city experiences occasional cold snaps, with temperatures dropping below 0°F (-18°C). Snowfall is common in the winter, with the city receiving an average of 20 inches (51 cm) per year.

Spring and Fall


Spring and fall in Trenton are mild and pleasant, with average high temperatures in the 60s and 70s (°F) and average low temperatures in the 40s and 50s (°F). The city experiences occasional periods of rain or snow during these seasons.

Climate Change


The climate in Trenton is changing, as it is in many parts of the world. The average temperature in the city has increased by about 1°F (0.6°C) over the past century, and the number of days with extreme heat has also increased. The city is also experiencing more intense and frequent rainfall events, which can lead to flooding.

Overall, Trenton has a humid continental climate with hot, humid summers and cold, dry winters. The city is experiencing the effects of climate change, which is leading to warmer temperatures and more extreme weather events.

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

    •   Trenton is situated on the Kaskaskia River, a tributary of the Mississippi River.

    •   The area was once a vast wetland, home to a diverse array of plants and animals.

    •   The Kaskaskia River Valley is a designated Important Bird Area, supporting over 200 species of birds.

Science

    •   In 1858, Trenton was the site of a major scientific expedition led by Louis Agassiz.

    •   Agassiz studied the local geology and fossils, contributing to the understanding of the region's natural history.

    •   Trenton is home to the Kaskaskia River State Fish and Wildlife Area, a popular destination for fishing, hunting, and wildlife observation.

Personalities

  • William Henry Harrison:

    The ninth President of the United States lived in Trenton from 1803 to 1812.

  • Abraham Lincoln:

    Lincoln visited Trenton in 1858 and gave a speech at the local courthouse.

  • John A. Logan:

    A prominent Civil War general and politician, Logan was born in Trenton in 1826.

  • Tourist Attractions
    1.Fort de Chartres State Historic Site

    is a reconstructed 18th-century French fort located on the Mississippi River. The fort was built in 1718 and served as the capital of French Illinois until 1765. Visitors can explore the fort's barracks, chapel, and other buildings, and learn about the history of the French in Illinois.

    2.Giant City State Park

    is a 4,000-acre park located in the Shawnee Hills. The park is home to a variety of natural features, including towering sandstone cliffs, waterfalls, and hiking trails. Visitors can also explore the park's historic Civilian Conservation Corps campgrounds and cabins.

    3.Mermet Springs

    is a natural spring located in the Shawnee Hills. The spring is known for its crystal-clear water and its large volume of flow. Visitors can swim, fish, and picnic at the spring, and there is also a hiking trail that leads to a nearby waterfall.

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