Our Proprietary 10-Day Forecast

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Current warnings over Greenfield, 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 Greenfield, 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 Greenfield, 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 Greene 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 Greenfield, 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 Greenfield, 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 Greenfield, 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 Greenfield, 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 Greenfield, 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 Greene 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)
Greenfield, Illinois has a humid continental climate with warm, humid summers and cold, dry winters. The average annual temperature is 52.4°F (11.3°C), with an average annual precipitation of 37.8 inches (960 mm).

Summer

The average summer temperature in Greenfield is 74.6°F (23.7°C), with an average high of 84.7°F (29.3°C) and an average low of 64.5°F (18.1°C). The hottest month is July, with an average temperature of 79.6°F (26.4°C).

Winter

The average winter temperature in Greenfield is 29.2°F (-1.6°C), with an average high of 36.7°F (2.6°C) and an average low of 21.7°F (-5.7°C). The coldest month is January, with an average temperature of 25.7°F (-3.5°C).

Precipitation

Greenfield receives an average of 37.8 inches (960 mm) of precipitation per year, which is fairly evenly distributed throughout the year. The wettest month is May, with an average of 4.3 inches (109 mm) of rain. The driest month is February, with an average of 1.9 inches (48 mm) of rain.

Snowfall

Greenfield receives an average of 23.3 inches (59 cm) of snow per year. The snowiest month is January, with an average of 8.1 inches (21 cm) of snow.

Climate Summary

    •   Average annual temperature: 52.4°F (11.3°C)
    •   Average annual precipitation: 37.8 inches (960 mm)
    •   Average summer temperature: 74.6°F (23.7°C)
    •   Average winter temperature: 29.2°F (-1.6°C)
    •   Average annual snowfall: 23.3 inches (59 cm)

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

    •   Greenfield is located in the Illinois River Valley, known for its rich biodiversity.

    •   The area is home to several nature preserves, including the 1,000-acre Big River State Forest.

    •   The forest is a haven for wildlife, including deer, turkey, and bald eagles.

Science

    •   Greenfield was the birthplace of physicist Charles Elwood Mendenhall, who served as president of the University of Wisconsin and superintendent of the U.S. Coast and Geodetic Survey.

    •   The town is also home to the Greenfield Science Center, which offers hands-on science exhibits and educational programs.

Personalities

    •   Sculptor Lorado Taft (1860-1936) spent his childhood in Greenfield.

    •   Taft's most famous work, \

Tourist Attractions
1.Lincoln Home National Historic Site

(Springfield, IL): The home of Abraham Lincoln from 1844 to 1861, this site includes the Lincoln Home, the Lincoln Tomb, and the Lincoln Presidential Library and Museum.

2.Cahokia Mounds State Historic Site

(Collinsville, IL): The largest pre-Columbian settlement north of Mexico, Cahokia Mounds was home to over 20,000 people from 1050 to 1350 AD. The site includes over 120 earthen mounds, including the largest prehistoric earthen mound in the Americas, Monks Mound.

3.Starved Rock State Park

(Oglesby, IL): A popular destination for hiking, camping, and rock climbing, Starved Rock State Park is home to 13 canyons, 18 waterfalls, and numerous sandstone cliffs. The park is also home to the Starved Rock Lock and Dam, which is a National Historic Landmark.

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