Our Proprietary 10-Day Forecast

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Current warnings over Mason City, 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 Mason City, 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 Mason City, 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 Mason 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 Mason City, 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 Mason City, 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 Mason City, 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 Mason City, 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 Mason City, 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 Mason 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)
Mason City, IL Climate Summary

Mason City, Illinois, located in the central part of the state, experiences a humid continental climate, characterized by hot, humid summers and cold, snowy winters. Here's a summary of the climate conditions in Mason City:

Temperature


    •   Average Annual Temperature: 50.6°F (10.3°C)
    •   Average Summer Temperature (June-August): 73.8°F (23.2°C)
    •   Average Winter Temperature (December-February): 27.1°F (-2.7°C)
    •   Highest Recorded Temperature: 109°F (42.8°C)
    •   Lowest Recorded Temperature: -27°F (-32.8°C)

Precipitation


    •   Average Annual Precipitation: 36.9 inches (93.7 centimeters)
    •   Average Snowfall: 24.3 inches (61.7 centimeters)
    •   Average Number of Rainy Days: 102 days
    •   Average Number of Snowy Days: 18 days

Humidity


    •   Average Annual Humidity: 73%
    •   Highest Humidity: 85% (July)
    •   Lowest Humidity: 58% (February)

Wind


    •   Average Wind Speed: 10.2 mph (16.4 km/h)
    •   Prevailing Wind Direction: Southwest

Climate Extremes


    •   Mason City has experienced extreme weather events, including tornadoes, severe thunderstorms, and floods.
    •   The city is located in Tornado Alley, a region of the United States known for its frequent tornado occurrences.
    •   Mason City has also experienced periods of drought and heat waves.

Overall, Mason City's climate is typical of the Midwest region, with hot, humid summers and cold, snowy winters. The city's location in Tornado Alley makes it susceptible to severe weather events, and it's important for residents to be prepared for these occurrences.

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

    •   Mason City is located in the heart of the Grand Prairie, a vast expanse of flat, fertile land.

    •   The area was once home to a diverse array of wildlife, including bison, elk, and wolves.

    •   The Sangamon River, which flows through the city, provides a vital habitat for fish and waterfowl.

Science

    •   Mason City is home to the Illinois State Water Survey, a world-renowned research institution dedicated to water resources management.

    •   The Survey's facilities include a state-of-the-art hydraulics laboratory and a network of field research sites.

    •   Mason City is also home to the Mason County Astronomical Society, which operates an observatory open to the public.

Personalities

    •   Mason City was the birthplace of Dr. Edward Teller, the \

Tourist Attractions
Mason City, IL is a small town with a population of around 2,400 people. It is located in central Illinois, about 30 miles north of Springfield. There are not many tourist attractions in or near Mason City, but here are a few options:

1.Lincoln's New Salem State Historic Site

is located about 20 miles south of Mason City. This site is a reconstruction of the village where Abraham Lincoln lived from 1831 to 1834. Visitors can explore the village and learn about Lincoln's life and times.

2.The Dickson Mounds Museum

is located about 30 miles north of Mason City. This museum is home to a large collection of Native American artifacts from the Illinois River Valley. Visitors can learn about the history and culture of the Native Americans who lived in this area.

3.The Mason County Historical Society Museum

is located in the center of Mason City. This museum has a collection of artifacts and exhibits that tell the story of Mason County's history. Visitors can learn about the county's early settlers, its industries, and its people.

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