Our Proprietary 10-Day Forecast

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Current warnings over Stillman Valley, 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 Stillman Valley, 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 Stillman Valley, 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 Ogle 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 Stillman Valley, 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 Stillman Valley, 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 Stillman Valley, 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 Stillman Valley, 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 Stillman Valley, 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 Ogle 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)
Stillman Valley, IL Climate Summary

Temperature

    •   Average annual temperature: 48.6°F (9.2°C)
    •   Average summer temperature: 72.3°F (22.4°C)
    •   Average winter temperature: 24.9°F (-3.9°C)
    •   Record high temperature: 106°F (41.1°C)
    •   Record low temperature: -26°F (-32.2°C)

Precipitation

    •   Average annual precipitation: 36.2 inches (919 mm)
    •   Average snowfall: 32.3 inches (820 mm)
    •   Wettest month: May (4.4 inches or 112 mm)
    •   Driest month: February (1.8 inches or 46 mm)

Other Climate Data

    •   Average annual sunshine: 2,500 hours
    •   Average wind speed: 10 mph (16 km/h)
    •   Average humidity: 70%

Climate Summary

Stillman Valley, IL has a humid continental climate with hot, humid summers and cold, snowy winters. The average annual temperature is 48.6°F (9.2°C), with average summer temperatures in the low 70s (°F) and average winter temperatures in the mid 20s (°F). The area receives an average of 36.2 inches (919 mm) of precipitation per year, with the majority of it falling during the spring and summer months. Snowfall is common during the winter months, with an average of 32.3 inches (820 mm) per year.

Climate Change

The climate in Stillman Valley, IL is changing, as it is in many parts of the world. The average annual temperature has increased by about 1.5°F (0.8°C) since the late 19th century, and the number of days with extreme heat has also increased. The area is also experiencing more heavy rainfall events, which can lead to flooding. These changes are expected to continue in the future, and they could have a significant impact on the local environment and economy.

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

    •   Stillman Valley lies within the Sugar River Basin, a watershed known for its diverse flora and fauna.

    •   The area is home to numerous wetlands, including the Stillman Valley Forest Preserve, which supports a variety of bird species.

    •   The Kishwaukee River, which flows through the town, provides habitat for fish and other aquatic life.

Science

    •   Stillman Valley is home to the Fermi National Accelerator Laboratory (Fermilab), one of the world's leading particle physics research centers.

    •   Fermilab's Tevatron accelerator was once the world's most powerful particle collider.

    •   The laboratory has made significant contributions to our understanding of the universe, including the discovery of the top quark.

Personalities

  • Dr. Robert Wilson:

    The first director of Fermilab, Wilson was a renowned physicist who played a key role in the development of the laboratory.

  • Dr. Leon Lederman:

    A Nobel Prize-winning physicist who worked at Fermilab, Lederman was known for his contributions to particle physics and his popular science writing.

  • Dr. Donna Strickland:

    A Nobel Prize-winning physicist who grew up in Stillman Valley, Strickland's work on chirped pulse amplification revolutionized laser technology.

    • Tourist Attractions
    1.Anderson Japanese Gardens

    (Rockford, IL): Located about 15 miles from Stillman Valley, these serene gardens feature traditional Japanese architecture, lush landscaping, and a tranquil pond.

    2.Burpee Museum of Natural History

    (Rockford, IL): This museum showcases a diverse collection of natural history exhibits, including fossils, wildlife, and interactive displays.

    3.Klehm Arboretum & Botanic Garden

    (Rockford, IL): Spread over 155 acres, this arboretum features a wide variety of trees, shrubs, and flowers, as well as hiking trails and educational programs.

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