Our Proprietary 10-Day Forecast

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Current warnings over South Beloit, 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 South Beloit, 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 South Beloit, 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 Winnebago 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 South Beloit, 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 South Beloit, 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 South Beloit, 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 South Beloit, 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 South Beloit, 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 Winnebago 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
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  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
South Beloit, Illinois Climate Summary

General Climate


South Beloit, Illinois experiences a humid continental climate, characterized by warm, humid summers and cold, snowy winters. The city is located in USDA Plant Hardiness Zone 5b, indicating that the average annual minimum temperature ranges from -15 to -10 degrees Fahrenheit.

Temperature


    •   Average Annual Temperature: 49.4°F (9.7°C)
    •   Average Summer Temperature (June-August): 73.6°F (23.1°C)
    •   Average Winter Temperature (December-February): 28.1°F (-2.2°C)
    •   Record High Temperature: 109°F (42.8°C)
    •   Record Low Temperature: -30°F (-34.4°C)

Precipitation


    •   Average Annual Precipitation: 36.95 inches (93.9 cm)
    •   Average Snowfall: 30.2 inches (76.7 cm)
    •   Average Number of Rainy Days: 109
    •   Average Number of Snowfall Days: 25

Humidity


    •   Average Annual Relative Humidity: 73%
    •   Average Summer Relative Humidity: 75%
    •   Average Winter Relative Humidity: 70%

Wind


    •   Average Annual Wind Speed: 10.5 mph (16.9 km/h)
    •   Prevailing Wind Direction: West-southwest

Severe Weather


    •   South Beloit is occasionally affected by severe weather events, including thunderstorms, hail, tornadoes, and blizzards. The city is located in Tornado Alley and experiences an average of one tornado per year.

Climate Change


    •   Like many regions worldwide, South Beloit is experiencing the effects of climate change. Average temperatures have been rising, and the frequency and intensity of extreme weather events have increased. These changes are expected to continue in the future.

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

    •   South Beloit is home to the Kishwaukee River, a tributary of the Rock River known for its scenic beauty and diverse fish populations.

    •   The city borders the Kishwaukee River Forest Preserve, offering hiking trails, fishing spots, and wildlife viewing opportunities.

Science

    •   In 1958, the world's first nuclear-powered submarine, the USS Nautilus, was launched from the Electric Boat Division of General Dynamics in South Beloit.

    •   The city has a strong history of manufacturing and innovation, with companies like Fairbanks Morse and Barber-Greene contributing to its industrial legacy.

Personalities

  • Dr. Charles H. Mayo (1865-1939):

    Co-founder of the Mayo Clinic, was born in Rochester, Minnesota, but grew up in South Beloit.

  • Frank Lloyd Wright (1867-1959):

    Renowned architect, designed the Dana-Thomas House in nearby Springfield, Illinois, which is considered one of his masterpieces.

  • John Deere (1804-1886):

    Inventor of the steel plow, had a factory in South Beloit from 1859-1868.

    • Tourist Attractions
    1.Anderson Japanese Gardens

    (Rockford, IL): A serene and beautiful 12-acre Japanese garden with traditional architecture, koi ponds, and walking paths.

    2.Burpee Museum of Natural History

    (Rockford, IL): A family-friendly museum featuring exhibits on animals, dinosaurs, and the natural world.

    3.Nicholas Conservatory & Gardens

    (Rockford, IL): A stunning botanical garden with indoor and outdoor displays, including a rainforest, desert, and butterfly house.

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