Our Proprietary 10-Day Forecast

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Current warnings over Hartland, Wisconsin
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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 Hartland, Wisconsin 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 Hartland, Wisconsin 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 Waukesha County, WI

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 Hartland, Wisconsin

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 Hartland, WI 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 Hartland, WI

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 Hartland, WI, 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 Hartland, Wisconsin

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 Waukesha County, Wisconsin

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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Hartland, WI Climate Summary

General Climate

    •   Hartland, Wisconsin has a humid continental climate with warm, humid summers and cold, snowy winters.
    •   The average annual temperature is 47.1°F (8.4°C).
    •   The average annual precipitation is 33.1 inches (84.1 centimeters).

Temperature

    •   The average temperature in January, the coldest month, is 19.1°F (-7.2°C).
    •   The average temperature in July, the warmest month, is 73.1°F (22.8°C).
    •   The highest temperature ever recorded in Hartland was 105°F (40.6°C) on July 14, 1936.
    •   The lowest temperature ever recorded in Hartland was -36°F (-37.8°C) on January 20, 1985.

Precipitation

    •   The average annual precipitation in Hartland is 33.1 inches (84.1 centimeters).
    •   The wettest month is June, with an average of 4.5 inches (11.4 centimeters) of precipitation.
    •   The driest month is February, with an average of 1.8 inches (4.6 centimeters) of precipitation.
    •   Hartland receives an average of 44.4 inches (112.8 centimeters) of snow per year.

Severe Weather

    •   Hartland is located in an area that is prone to severe weather, including tornadoes, hail, and thunderstorms.
    •   The area is also at risk for flooding and winter storms.

Climate Change

    •   The climate in Hartland is changing, with average temperatures rising and precipitation patterns becoming more extreme.
    •   These changes are expected to continue in the future, with potentially significant impacts on the local environment and economy.

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

    •   Hartland is home to the Kettle Moraine State Forest, a vast natural area with glacial landforms, forests, and lakes.

    •   The Ice Age Trail, a 1,200-mile hiking trail, passes through Hartland, offering scenic views of the forest and surrounding countryside.

    •   The Mukwonago River, a tributary of the Rock River, flows through Hartland, providing a habitat for fish and wildlife.

Science

    •   Hartland is the birthplace of Dr. William H. Welch, a renowned pathologist and the first dean of the Johns Hopkins University School of Medicine.

    •   The Hartland Observatory, established in 1954, is one of the oldest privately operated observatories in Wisconsin.

    •   The University of Wisconsin-Madison's Hartland Research Station is a field station dedicated to agricultural research and education.

Personalities

    •   George C. Marshall, the U.S. Army Chief of Staff during World War II, spent his retirement years in Hartland.

    •   William S. Harley, co-founder of the Harley-Davidson Motor Company, was born in Hartland in 1869.

    •   John Muir, the naturalist and conservationist, visited Hartland in 1871 and described the area as \

Tourist Attractions
1.Hartland Marsh

is a 1,000-acre wetland complex that is home to a variety of wildlife, including birds, deer, and turtles. The marsh is a popular spot for hiking, biking, and kayaking.

2.The Kettle Moraine State Forest

is a 22,000-acre forest that is home to a variety of hiking trails, picnic areas, and campgrounds. The forest is also a popular spot for hunting, fishing, and cross-country skiing.

3.The Lapham Peak Unit of the Kettle Moraine State Forest

is a 1,500-acre park that is home to Lapham Peak, the highest point in Waukesha County. The park offers stunning views of the surrounding countryside and is a popular spot for hiking, picnicking, and sledding.

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