Our Proprietary 10-Day Forecast

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Current warnings over Mount Olive, 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 Mount Olive, 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 Mount Olive, 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 Mount Olive, 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 Mount Olive, 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 Mount Olive, 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 Mount Olive, 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 Mount Olive, 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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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)
Mount Olive, Illinois Climate Summary

General Climate

    •   Mount Olive, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters.
    •   The average annual temperature is 52.3°F (11.3°C).
    •   The average annual precipitation is 38.4 inches (975 mm).

Summer

    •   The average summer temperature is 74.4°F (23.6°C).
    •   The average July high temperature is 85.4°F (29.7°C).
    •   The average July low temperature is 63.4°F (17.4°C).
    •   The average annual precipitation during the summer months is 11.2 inches (284 mm).

Winter

    •   The average winter temperature is 29.2°F (-1.6°C).
    •   The average January high temperature is 35.6°F (2.0°C).
    •   The average January low temperature is 22.8°F (-5.1°C).
    •   The average annual precipitation during the winter months is 8.2 inches (208 mm).

Spring and Fall

    •   The average spring temperature is 51.6°F (10.9°C).
    •   The average April high temperature is 61.8°F (16.6°C).
    •   The average April low temperature is 41.4°F (5.2°C).
    •   The average annual precipitation during the spring months is 9.5 inches (241 mm).
    •   The average fall temperature is 49.9°F (9.9°C).
    •   The average October high temperature is 60.7°F (15.9°C).
    •   The average October low temperature is 39.1°F (3.9°C).
    •   The average annual precipitation during the fall months is 9.5 inches (241 mm).

Precipitation

    •   The average annual precipitation is 38.4 inches (975 mm).
    •   The wettest month is May, with an average precipitation of 4.2 inches (107 mm).
    •   The driest month is February, with an average precipitation of 2.0 inches (51 mm).

Snowfall

    •   The average annual snowfall is 19.3 inches (490 mm).
    •   The most snowfall typically occurs in January, with an average of 6.6 inches (168 mm).

Extreme Weather

    •   Mount Olive is located in an area that is prone to severe thunderstorms, tornadoes, and hail.
    •   The area is also at risk for flooding and blizzards.

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

    •   Mount Olive is situated on the Mount Olive Coal Field, one of the largest coal reserves in the United States.

    •   The area is home to numerous sinkholes, formed by the collapse of underground limestone formations.

    •   The Mount Olive and Staunton Coal Company operated a large coal mine in the town from 1872 to 1954.

Science

    •   Mount Olive is the site of a former coal-fired power plant, which was converted into a solar farm in 2019.

    •   The town is home to a branch of the University of Illinois Extension, which conducts research and outreach programs in agriculture and natural resources.

Personalities

  • John H. Lewis:

    A prominent African American scientist and astronaut, Lewis was born in Mount Olive in 1940.

  • Charles \

    • Tourist Attractions
    1.Pere Marquette State Park

    This park offers scenic hiking trails, a lake for fishing and boating, and a historic lodge.

    2.Cahokia Mounds State Historic Site

    This UNESCO World Heritage Site is home to the largest prehistoric earthworks in North America, built by the Mississippian culture.

    3.Lewis and Clark State Historic Site

    This site commemorates the Lewis and Clark Expedition, which passed through the area in 1804.

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