Our Proprietary 10-Day Forecast

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Current warnings over Hamilton, 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 Hamilton, 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 Hamilton, 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 Hancock 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 Hamilton, 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 Hamilton, 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 Hamilton, 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 Hamilton, 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 Hamilton, 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 Hancock 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)
Hamilton, Illinois Climate Summary

Temperature

    •   Average annual temperature: 52.4°F (11.3°C)
    •   Average January temperature: 29.7°F (-1.3°C)
    •   Average July temperature: 76.1°F (24.5°C)
    •   Record high temperature: 117°F (47.2°C) set on July 14, 1936
    •   Record low temperature: -36°F (-37.8°C) set on January 5, 1999

Precipitation

    •   Average annual precipitation: 37.15 inches (94.4 cm)
    •   Average January precipitation: 2.28 inches (5.8 cm)
    •   Average July precipitation: 4.11 inches (10.4 cm)
    •   Record 24-hour precipitation: 7.48 inches (19 cm) set on September 15, 1986

Snowfall

    •   Average annual snowfall: 19.5 inches (49.5 cm)
    •   Average January snowfall: 7.3 inches (18.5 cm)
    •   Average July snowfall: 0 inches (0 cm)
    •   Record 24-hour snowfall: 14.0 inches (35.6 cm) set on January 17, 1979

Wind

    •   Average annual wind speed: 10.2 mph (16.4 km/h)
    •   Average January wind speed: 11.5 mph (18.5 km/h)
    •   Average July wind speed: 8.9 mph (14.3 km/h)
    •   Record wind gust: 75 mph (121 km/h) set on January 16, 1979

Climate Classification

    •   Humid continental climate (Köppen Dfa)

Tornado Activity

    •   Hamilton County is located in an area with a moderate risk of tornadoes.
    •   The average number of tornadoes per year in Hamilton County is 1.
    •   The most recent tornado to hit Hamilton County was an EF1 tornado that occurred on April 9, 2020.

Overall

Hamilton, Illinois has a humid continental climate with hot, humid summers and cold, snowy winters. The average annual temperature is 52.4°F (11.3°C), and the average annual precipitation is 37.15 inches (94.4 cm). The area is also at moderate risk for tornadoes.

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

    •   Hamilton is home to the Mississippi River Palisades State Park, featuring towering limestone bluffs and diverse flora and fauna.

    •   The park is a haven for birdwatchers, with over 200 species observed, including bald eagles and peregrine falcons.

    •   The Mississippi River provides a rich habitat for fish, including largemouth bass, catfish, and walleye.

Science

    •   Hamilton was the birthplace of Dr. Jonas Salk, who developed the polio vaccine.

    •   The city is home to the Jonas Salk Institute, a renowned biomedical research center.

    •   The institute has made significant contributions to immunology, virology, and neuroscience.

Personalities

    •   Hamilton was the home of John Wood, the first governor of Illinois.

    •   Wood played a pivotal role in the state's early development and the establishment of the state capital in Springfield.

    •   The city is also associated with the writer and poet Carl Sandburg, who spent his childhood in Hamilton.

Tourist Attractions
1.Hamilton County Courthouse

- This historic courthouse is located in the heart of downtown Hamilton and is a beautiful example of Victorian architecture. It is open to the public for tours and is a popular spot for weddings and other events.

2.Dunnington Park

- This park is located on the banks of the Mississippi River and offers a variety of activities for visitors, including hiking, biking, fishing, and boating. It is also home to the Hamilton County Fairgrounds, which hosts a variety of events throughout the year.

3.Keokuk National Cemetery

- This cemetery is located just across the river from Hamilton in Keokuk, Iowa. It is the final resting place for over 10,000 veterans and is a beautiful place to visit for a walk or to learn about the history of the area.

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