Our Proprietary 10-Day Forecast

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Current warnings over Carrollton, 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 Carrollton, 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 Carrollton, 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 Greene 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 Carrollton, 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 Carrollton, 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 Carrollton, 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 Carrollton, 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 Carrollton, 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 Greene 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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  • Canadian GDPS GEM
  • German DWD ICON
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  • 3-Ensemble Mean & more!
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)
Carrollton, Illinois, experiences a humid subtropical climate with hot, humid summers and cold, dry, and windy winter.

Summer
    •   Average high temperatures in the upper 80s °F (low 30s °C)
    •   Average low temperatures in the mid-60s °F (low 20s °C)
    •   High relative air moisture content
    •   Frequent thunderstorms

Winter
    •   Average high temperatures in the mid-30s °F (low 2 °C)
    •   Average low temperatures in the mid-20s °F (around -4 °C)
    •   Low relative air moisture content
    •   Occasional snowstorms

Spring and Fall
    •   Average high temperatures in the mid-60s to mid-70s °F (around 20 °C)
    •   Average low temperatures in the mid-40s to mid-50s °F (around 10 °C)
    •   Low relative air moisture content
    •   Occasional rain showers

Precipitation
    •   Average annual total: 35 inches (89 cm)
    •   Fairly evenly distributed throughout the year
    •   Heaviest in May and June
    •   Lightest in January and February

Extreme Weather
    •   Tornadoes: Occasional, especially in late spring and early summer
    •   Hailstorms: Occasional, especially in late spring and early summer
    •   FloODS: Occasional, especially in late winter and early spring
    •   Heat waves: Occasional, especially in late summer and early fall
    •   Cold waves: Occasional, especially in late fall and early winter

Overall

Carrollton's climate is generally pleasant, with four distinct seasons. However, the area is also subject to extreme weather events, such as tornadoes, hailstorms, floods, heat waves, and cold waves.

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

    •   Carrollton is home to the Macoupin Creek National Wildlife Refuge, a 2,000-acre wetland complex that supports a diverse array of migratory birds, waterfowl, and other wildlife.

    •   The nearby Pere Marquette State Park features towering bluffs, scenic hiking trails, and a natural spring that flows into the Illinois River.

Science

    •   Carrollton was the site of the first successful commercial oil well in Illinois, drilled in 1889. This discovery sparked an oil boom in the region.

    •   The city is also home to the Carrollton Research Center, a facility dedicated to agricultural research and education.

Personalities

    •   John Carroll, a prominent pioneer and politician, founded Carrollton in 1821. He served as a delegate to the Illinois Constitutional Convention and as a member of the U.S. House of Representatives.

    •   General William Tecumseh Sherman, a Union commander during the Civil War, visited Carrollton in 1861 and gave a speech at the courthouse.

    •   The city's most famous resident was perhaps George \

Tourist Attractions
1.Lincoln's New Salem State Historic Site

(Petersburg, IL): A living history museum that recreates the village where Abraham Lincoln lived from 1831-1834. Visitors can explore historic buildings, meet costumed interpreters, and learn about Lincoln's early life.

2.Pere Marquette State Park

(Grafton, IL): A scenic park located along the Illinois River. Visitors can enjoy hiking, biking, camping, fishing, and boating. The park also features a historic lodge and restaurant.

3.St. Louis Zoo

(St. Louis, MO): A world-renowned zoo that is home to over 17,000 animals from around the globe. Visitors can explore a variety of exhibits, including the River's Edge, Primate Canopy Trails, and Big Cat Country.

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