Our Proprietary 10-Day Forecast

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Current warnings over Cairo, 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 Cairo, 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 Cairo, 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 Alexander 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 Cairo, 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 Cairo, 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 Cairo, 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 Cairo, 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 Cairo, 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 Alexander 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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  • 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)
Cairo, Illinois, located in the southernmost tip of the state, experiences a humid subtropical climate (Köppen Cfa), characterized by hot, humid summers and mild to cool winters. Here's a summary of the climate in Cairo, IL:1.Temperature:
    •   Average Annual Temperature: 57.8°F (14.3°C)
    •   Average Summer Temperature (June-August): 78.6°F (25.9°C)
    •   Average Winter Temperature (December-February): 36.6°F (2.6°C)

2. Precipitation:
    •   Average Annual Precipitation: 48.2 inches (122.4 cm)
    •   Precipitation is relatively evenly distributed throughout the year, with slightly higher amounts in the spring and winter.

3. Humidity:
    •   Cairo experiences high humidity levels throughout the year, with average relative humidity ranging from 65% to 80%.

4. Sunshine:
    •   Cairo receives an average of 2,120 sunshine hours per year, with the sunniest months being June and July.

5. Severe Weather:
    •   Cairo is located in an area that is prone to severe weather, including thunderstorms, hail, and tornadoes. The city is also at risk of flooding due to its location along the Mississippi River.

6. Climate Change:
    •   Like many regions worldwide, Cairo is experiencing the effects of climate change. The city has seen an increase in average temperatures, more frequent and intense heatwaves, and heavier rainfall events.

7. Seasonal Variations:
    •   Spring (March-May): Spring in Cairo is generally mild, with temperatures gradually warming up. Precipitation is common, and the region experiences occasional severe weather.
    •   Summer (June-August): Summers are hot and humid, with high temperatures often exceeding 90°F (32°C). Thunderstorms are frequent, and heatwaves can occur.
    •   Fall (September-November): Fall brings cooler temperatures and lower humidity. The foliage in the surrounding areas turns vibrant colors, making it a beautiful time to visit.
    •   Winter (December-February): Winters are mild to cool, with occasional cold spells. Snowfall is infrequent, but freezing rain and icy conditions can occur.

Overall, Cairo's climate is characterized by hot, humid summers, mild winters, and abundant precipitation throughout the year. The city's location in the Mississippi River Valley makes it susceptible to flooding and severe weather events.

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

    •   Cairo is located at the confluence of the Ohio and Mississippi Rivers, creating a diverse ecosystem.

    •   The area is home to the Shawnee National Forest, known for its rugged terrain, waterfalls, and wildlife.

    •   The Mississippi River floodplain provides a habitat for migratory birds and fish.

Science

    •   In 1872, Cairo became the first city in the United States to install a municipal water filtration system.

    •   The city is home to the Cairo Research and Development Center, a U.S. Army Corps of Engineers facility that conducts research on river engineering and flood control.

Personalities

    •   Ulysses S. Grant, the 18th President of the United States, lived in Cairo for a time during the Civil War.

    •   Mark Twain visited Cairo in 1882 and described the city as \

Tourist Attractions
1.Fort Defiance Park

is a 120-acre park located on the banks of the Ohio River. The park features a variety of attractions, including a replica of Fort Defiance, a playground, a picnic area, and a walking trail.

2.Cairo Custom House Museum

is a museum that tells the story of Cairo's history as a major port city. The museum features exhibits on the city's role in the Civil War, the Underground Railroad, and the steamboat era.

3.Cairo Public Library

is a historic library that was built in 1889. The library is home to a collection of over 100,000 books, as well as a variety of historical artifacts.

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