Our Proprietary 10-Day Forecast

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Current warnings over Diamond, 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 Diamond, 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 Diamond, 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 Grundy 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 Diamond, 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 Diamond, 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 Diamond, 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 Diamond, 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 Diamond, 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 Grundy 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)
Diamond, Illinois Climate Summary

General Climate


    •   Diamond, Illinois has a humid continental climate, characterized by hot, humid summers and cold, snowy winters.
    •   The area experiences all four seasons, with distinct changes in temperature and precipitation throughout the year.

Temperature


    •   Average annual temperature: 49.5°F (9.7°C)
    •   Average summer temperature (June-August): 74.8°F (23.8°C)
    •   Average winter temperature (December-February): 25.7°F (-3.5°C)
    •   Record high temperature: 113°F (45°C)
    •   Record low temperature: -31°F (-35°C)

Precipitation


    •   Average annual precipitation: 36.9 inches (937 mm)
    •   Average snowfall: 30.6 inches (77.7 cm)
    •   The majority of precipitation occurs during the spring and summer months, with thunderstorms being common.
    •   Snowfall typically occurs from November to March, but can vary from year to year.

Humidity


    •   Average annual relative humidity: 72%
    •   Humidity levels tend to be higher during the summer months, when temperatures are warmer.

Wind


    •   Average wind speed: 10.2 mph (16.4 km/h)
    •   Prevailing wind direction: West-southwest

Severe Weather


    •   Diamond, Illinois is located in an area that is prone to severe weather, including tornadoes, hailstorms, and flooding.
    •   The area is also at risk for extreme cold and heat waves.

Overall


Diamond, Illinois has a humid continental climate, with hot, humid summers and cold, snowy winters. The area experiences all four seasons, with distinct changes in temperature and precipitation throughout the year. Severe weather can occur, so it is important to be prepared for potential weather hazards.

Facts & Historical Information
(made with AI, use with caution)
    •   Diamond, Illinois, is home to the world's largest black diamond mine. The mine has been in operation since the 1800s and has produced over 15 million carats of diamonds.
    •   The town of Diamond was founded in 1867 by a group of miners who were looking for a new place to dig for diamonds. The town quickly grew into a thriving community, and by the early 1900s, it was one of the largest diamond-producing towns in the world.
    •   Diamond is also home to the Diamond State Park, which is a popular destination for hiking, camping, and fishing. The park is home to a variety of plant and animal life, including deer, turkey, and eagles.
    •   One of the most famous residents of Diamond was John Wesley Powell, who was a geologist and explorer. Powell led the first expedition down the Colorado River through the Grand Canyon in 1869.

Tourist Attractions
1.Starved Rock State Park

(10 miles west of Diamond, IL): A scenic park featuring sandstone canyons, waterfalls, and hiking trails.

2.Matthiessen State Park

(15 miles west of Diamond, IL): Another scenic park with waterfalls, canyons, and hiking trails, as well as a historic lodge.

3.Buffalo Rock State Park

(12 miles east of Diamond, IL): A park with a large sandstone bluff overlooking the Illinois River, as well as hiking trails and a campground.

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