Our Proprietary 10-Day Forecast

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Current warnings over Gillespie, 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 Gillespie, 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 Gillespie, 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 Macoupin 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 Gillespie, 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 Gillespie, 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 Gillespie, 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 Gillespie, 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 Gillespie, 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 Macoupin 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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Climate Summary
(made with AI, use with caution)
Gillespie, Illinois Climate Summary

Temperature

    •   Average annual temperature: 52.6°F (11.4°C)
    •   Average January temperature: 29.1°F (-1.6°C)
    •   Average July temperature: 76.3°F (24.6°C)
    •   Record high temperature: 115°F (46.1°C)
    •   Record low temperature: -38°F (-38.9°C)

Precipitation

    •   Average annual precipitation: 37.6 inches (95.5 centimeters)
    •   Average snowfall: 18.6 inches (47.2 centimeters)
    •   Wettest month: May (4.2 inches or 10.7 centimeters)
    •   Driest month: February (1.8 inches or 4.6 centimeters)

Other

    •   Average annual sunshine: 2,522 hours
    •   Average annual humidity: 73%
    •   Prevailing wind direction: South-southwest

Climate Zone

    •   Temperate continental climate (Köppen climate classification Dfa)

Summary

Gillespie, Illinois has a temperate continental climate with four distinct seasons. Summers are warm and humid, with average July temperatures in the mid-70s Fahrenheit (mid-20s Celsius). Winters are cold and snowy, with average January temperatures in the upper 20s Fahrenheit (around -2 Celsius). Precipitation is fairly evenly distributed throughout the year, with slightly more rain in the spring and summer months.

Gillespie is located in USDA Hardiness Zone 5b, which means that the average annual minimum temperature is between -15°F and -10°F (-26.1°C and -23.3°C). This means that most plants that are hardy to Zone 5b or warmer can be grown in Gillespie.

The climate in Gillespie is generally favorable for agriculture. The long growing season and ample precipitation make it possible to grow a wide variety of crops, including corn, soybeans, wheat, and hay. The area is also home to several wineries and orchards.

Overall, Gillespie has a pleasant climate that is conducive to a variety of outdoor activities. The warm summers are perfect for swimming, fishing, and camping, while the cold winters offer opportunities for sledding, skiing, and ice skating.

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

    •   Gillespie is home to the Gillespie Lake State Fish and Wildlife Area, a 5,000-acre haven for waterfowl, deer, and other wildlife.

    •   The Macoupin Creek, which flows through the town, is a tributary of the Mississippi River and supports a diverse aquatic ecosystem.

Science

    •   Gillespie was the birthplace of Dr. Charles C. Carpenter, a renowned anthropologist and primatologist known for his groundbreaking work with chimpanzees.

    •   The town is also home to the Gillespie High School Science Club, which has won numerous awards for its research and projects.

Personalities

    •   Gillespie is the hometown of Charles \

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

A 1,200-acre lake with opportunities for fishing, boating, camping, and hiking.

2.Gillespie Historic District:

A collection of historic buildings in downtown Gillespie, including the Gillespie Opera House and the Gillespie City Hall.

3.Macoupin County Historical Museum:

A museum dedicated to the history of Macoupin County, including exhibits on agriculture, industry, and local events.

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