Our Proprietary 10-Day Forecast

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Current warnings over South Jacksonville, 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 Jacksonville, 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 Jacksonville, 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 Morgan 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 Jacksonville, 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 Jacksonville, 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 Jacksonville, 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 Jacksonville, 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 Jacksonville, 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 Morgan 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.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • 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 Jacksonville, IL Climate Summary

Average Temperature

    •   Summer (June-August)

75°F (24°C)

    •   Fall (September-November)

55°F (13°C)

    •   Winter (December-February)

30°F (-1°C)

    •   Spring (March-May)

50°F (10°C)

Average Precipitation

    •   Annual

38 inches (97 cm)

    •   Summer

10 inches (25 cm)

    •   Fall

8 inches (20 cm)

    •   Winter

6 inches (15 cm)

    •   Spring

14 inches (36 cm)

Climate Type

    •   Humid continental climate

General Climate

    •   South Jacksonville, IL has a humid continental climate, with hot, humid summers and cold, snowy winters.
    •   The average temperature in July is 75°F (24°C), while the average temperature in January is 30°F (-1°C).
    •   The area receives an average of 38 inches (97 cm) of precipitation per year, which is fairly evenly distributed throughout the year.
    •   South Jacksonville, IL is located in USDA Hardiness Zone 5b, which means that the average annual minimum temperature is between -15°F and -10°F (-26°C and -23°C).

Climate Trends

    •   The climate in South Jacksonville, IL has been warming in recent decades. The average temperature has increased by about 1°F (0.6°C) per decade since 1970.
    •   The area has also been experiencing more extreme weather events, such as heat waves, droughts, and floods.

Climate Impacts

    •   The changing climate is having a number of impacts on South Jacksonville, IL, including:
    •   Increased flooding and erosion
    •   More heat-related illnesses
    •   Changes in plant and animal life
    •   Increased energy costs
    •   Damage to infrastructure

Adaptation and Mitigation Strategies

    •   The City of South Jacksonville is working to adapt to the changing climate by taking steps such as:
    •   Investing in flood control infrastructure
    •   Planting trees to provide shade and reduce heat island effects
    •   Promoting energy efficiency and renewable energy
    •   Educating the public about the impacts of climate change

    •   The City is also working to mitigate its greenhouse gas emissions by taking steps such as:
    •   Reducing energy consumption
    •   Switching to renewable energy sources
    •   Improving waste management practices

Conclusion

The climate in South Jacksonville, IL is changing, and the City is working to adapt and mitigate the impacts of this change. By taking steps to reduce greenhouse gas emissions and invest in climate adaptation measures, the City can help to ensure a sustainable future for its residents.

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

    •   South Jacksonville is situated on the Illinois River and lies within the Mississippi River Valley.

    •   The area is home to a variety of plant and animal life, including bald eagles, white-tailed deer, and river otters.

    •   The nearby Emiquon National Wildlife Refuge provides habitat for migratory waterfowl and other wildlife.

Science

    •   The Illinois College of Agriculture, Food, and Environmental Sciences is located in South Jacksonville.

    •   The college is a leader in agricultural research and education, with a focus on sustainable agriculture and environmental stewardship.

    •   The South Jacksonville Water Treatment Plant uses advanced technology to provide clean drinking water to the community.

Personalities

    •   Edward C. Waller, a prominent African American inventor, lived in South Jacksonville in the late 19th century.

    •   Waller invented a number of devices, including a self-adjusting window shade and a folding bed.

    •   His inventions were widely used and helped to improve the lives of many people.

Tourist Attractions
1.Horseshoe Lake State Fish and Wildlife Area:

A 2,500-acre natural area known for its scenic lake, hiking trails, and abundant wildlife, including bald eagles and white pelicans.

2.South Jacksonville Covered Bridge:

A historic covered bridge built in 1855, spanning the Mauvaisterre Creek and providing a picturesque backdrop for photos and strolls.

3.Jacksonville Historic District:

A charming downtown area with well-preserved Victorian and Edwardian architecture, housing shops, restaurants, and historic sites such as the Morgan County Courthouse and the David Strawn Art Gallery.

Nearby Cities:

Jacksonville, IL
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Ashland, ILVirginia, IL
Meredosia, ILWhite Hall, IL
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Springfield, IL
Peoria, ILNorth Peoria, IL
Champaign, ILBloomington, IL
Decatur, ILSaint Charles, MO
Normal, ILSaint Peters, MO
Florissant, MOChesterfield, MO
Urbana, IL