Our Proprietary 10-Day Forecast

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Current warnings over Washington, 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 Washington, 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 Washington, 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 Tazewell 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 Washington, 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 Washington, 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 Washington, 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 Washington, 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 Washington, 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 Tazewell 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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Washington, Illinois Climate Summary

General Climate

    •   Washington, Illinois has a humid continental climate, characterized by warm, humid summers and cold, snowy winters.
    •   The city experiences all four seasons, with average temperatures ranging from 24°F (-4°C) in January to 80°F (27°C) in July.
    •   The average annual precipitation is 38 inches (97 cm), with most of it falling in the spring and summer months.

Temperature

    •   Summer

During the summer months (June, July, and August), average temperatures range from 68°F (20°C) to 80°F (27°C). High temperatures can reach into the 90s (°F) during heat waves.

    •   Winter

During the winter months (December, January, and February), average temperatures range from 24°F (-4°C) to 32°F (0°C). Low temperatures can drop below 0°F (-18°C) during cold spells.

    •   Spring and Fall

Spring and fall (March, April, May, September, October, and November) are transitional seasons with average temperatures ranging from 40°F (4°C) to 68°F (20°C).

Precipitation

    •   Washington, Illinois receives an average of 38 inches (97 cm) of precipitation per year.
    •   The majority of precipitation falls during the spring and summer months, with an average of 4 inches (10 cm) per month from April to September.
    •   The city also experiences occasional thunderstorms, especially during the summer months.
    •   Snowfall averages 22 inches (56 cm) per year, with most of it falling from December to February.

Climate Change

    •   Like many parts of the world, Washington, Illinois is experiencing the effects of climate change.
    •   Average temperatures have been rising in recent decades, and the city is experiencing more extreme weather events, such as heat waves, droughts, and flooding.
    •   These changes are expected to continue in the future, and they could have a significant impact on the city's environment and economy.

Overall, Washington, Illinois has a humid continental climate with warm summers, cold winters, and moderate precipitation. The city is experiencing the effects of climate change, and these changes are expected to continue in the future.

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

    •   Washington is home to the largest stand of virgin oak-hickory forest remaining in Illinois, known as the Mackinaw State Forest.

    •   The city is located on the Mackinaw River, which is a tributary of the Illinois River and supports a diverse ecosystem.

    •   Washington Park hosts the Washington Butterfly Garden, featuring over 200 species of butterflies and moths.

Science

    •   The city's namesake, George Washington, was a renowned scientist and inventor. He conducted experiments in agriculture and surveying.

    •   Washington is the birthplace of the inventor and engineer William H. Pickering, who played a key role in the development of the U.S. space program.

Personalities

    •   David Davis, a prominent lawyer and Supreme Court Justice, lived in Washington. He was a close friend and advisor to Abraham Lincoln.

    •   John Wesley Powell, a geologist and explorer, visited Washington in 1869 during his expedition to the Grand Canyon. He was impressed by the city's natural beauty.

Tourist Attractions
1. Wildlife Prairie Park

2. Fondulac Park District

3. Miller Park Zoo

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