Our Proprietary 10-Day Forecast

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Current warnings over Upper Alton, 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 Upper Alton, 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 Upper Alton, 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 Madison 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 Upper Alton, 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 Upper Alton, 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 Upper Alton, 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 Upper Alton, 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 Upper Alton, 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 Madison 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)
Upper Alton, Illinois is located in the Midwestern United States, in the state of Illinois. The city has a humid continental climate, with hot, humid summers and cold, snowy winters.

Summer

The average high temperature in Upper Alton during the summer months (June, July, and August) is 86°F (30°C). The average low temperature is 65°F (18°C). The humidity is high during the summer months, making the heat feel even hotter. There is also a chance of thunderstorms during the summer months.

Winter

The average high temperature in Upper Alton during the winter months (December, January, and February) is 32°F (0°C). The average low temperature is 18°F (-8°C). The city receives an average of 20 inches of snow per year. The snow can make it difficult to travel and can also cause power outages.

Spring and Fall

The spring and fall months (March, April, May, September, October, and November) are generally mild in Upper Alton. The average high temperature during these months is in the 50s and 60s°F (10-20°C), while the average low temperature is in the 30s and 40s°F (0-10°C). There is a chance of rain during the spring and fall months, but it is not as common as it is during the summer months.

Climate Change

The climate in Upper Alton is changing, as it is in many parts of the world. The average temperature in the city has increased by about 2°F (1°C) over the past century. The city is also experiencing more extreme weather events, such as heat waves, droughts, and floods.

Conclusion

Upper Alton, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters. The city is also experiencing the effects of climate change, such as rising temperatures and more extreme weather events.

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

    •   Upper Alton is home to the largest limestone quarry in Illinois, the Piasa Limestone Quarry. The quarry is over 1,000 acres in size and produces over 10 million tons of limestone per year.

    •   The Mississippi River flows along the eastern border of Upper Alton. The river is home to a variety of fish and wildlife, including bald eagles, osprey, and white pelicans.

    •   The Alton Belle Casino is a riverboat casino located in Upper Alton. The casino is one of the largest in Illinois and offers a variety of gaming options, including slots, table games, and poker.

Science

    •   The Lewis and Clark Expedition camped in Upper Alton in 1804. The expedition was led by Meriwether Lewis and William Clark and was tasked with exploring the Louisiana Purchase.

    •   Upper Alton is home to the National Great Rivers Research and Education Center. The center is a research and education facility dedicated to the study of the Mississippi River and its tributaries.

    •   The University of Illinois at Urbana-Champaign has a research station in Upper Alton. The station is used to conduct research on agriculture, forestry, and natural resources.

Personalities

    •   Elijah Parish Lovejoy was an abolitionist who lived in Upper Alton. Lovejoy was killed by a mob in 1837 while defending his printing press.

    •   Lyman Trumbull was a U.S. Senator from Illinois who lived in Upper Alton. Trumbull was a strong supporter of the Union during the Civil War.

    •   Robert Wadlow was the tallest man in history. Wadlow was born in Upper Alton in 1918 and died in 1940.

Tourist Attractions
1.National Great Rivers Museum

This museum showcases the history and culture of the Mississippi River and its tributaries. Visitors can explore exhibits on riverboats, Native American life, and the region's natural resources.

2.Piasa Bird Monument

Located just north of Upper Alton, this 50-foot tall concrete statue of a mythical Native American bird was built in 1915. It offers panoramic views of the Mississippi River and the surrounding bluffs.

3.Lewis and Clark State Historic Site

This site commemorates the expedition of Meriwether Lewis and William Clark. Visitors can explore a replica of their fort, learn about their journey, and hike along the scenic riverfront trails.

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