Our Proprietary 10-Day Forecast

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Current warnings over Merton, 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 Merton, 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 Merton, 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 Merton, 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 Merton, 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 Merton, 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 Merton, 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 Merton, 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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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)
Merton, Wisconsin Climate Summary

Temperature

    •   Average annual temperature: 46.3°F (7.9°C)
    •   Average summer temperature (June-August): 67.6°F (19.8°C)
    •   Average winter temperature (December-February): 21.9°F (-5.6°C)
    •   Record high temperature: 110°F (43.3°C) set on July 13, 1936
    •   Record low temperature: -48°F (-44.4°C) set on January 21, 1954

Precipitation

    •   Average annual precipitation: 32.08 inches (81.5 cm)
    •   Average snowfall: 42.5 inches (108 cm)
    •   Wettest month: June (4.41 inches or 11.2 cm)
    •   Driest month: February (1.66 inches or 4.2 cm)

Other Climate Data

    •   Average annual sunshine: 2,344 hours
    •   Average annual relative humidity: 73%
    •   Average wind speed: 10.1 mph (16.3 km/h)
    •   Prevailing wind direction: West-southwest

Climate Summary

Merton, Wisconsin has a humid continental climate with warm summers and cold, snowy winters. The average annual temperature is 46.3°F (7.9°C), with average summer temperatures in the mid-60s to low 70s (°F) and average winter temperatures in the low 20s (°F). The area receives an average of 32.08 inches (81.5 cm) of precipitation per year, with the majority of it falling during the summer months. Snowfall averages 42.5 inches (108 cm) per year.

The climate in Merton is influenced by its location in the Midwest, which is characterized by a continental climate with large variations in temperature between summer and winter. The area is also affected by the Great Lakes, which help to moderate temperatures and provide moisture.

The climate in Merton is generally favorable for agriculture, with a long growing season and adequate rainfall. The area is also home to a variety of plant and animal life, including many species of trees, wildflowers, and birds.

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

  • Kettle Moraine State Forest:

    Merton is nestled within the Kettle Moraine, a series of glacial hills formed during the last ice age.

  • Pike Lake:

    This large lake is a popular spot for fishing, boating, and birdwatching. It's home to various fish species, including largemouth bass, northern pike, and bluegill.

  • Merton Bog:

    A 100-acre wetland known for its diverse plant and animal life. It's a haven for amphibians, reptiles, and birds.

    Personalities

  • John Muir:

    The famous naturalist and conservationist spent time in Merton in the 1860s. He was inspired by the beauty of the Kettle Moraine and its natural wonders.

  • Dr. Frederick Russell:

    A renowned physician and scientist who established the Russell Laboratories in Merton in the early 1900s. The laboratories were dedicated to research in immunology and infectious diseases.

  • Dr. Joseph Seiter:

    A local physician who discovered the first case of Lyme disease in Wisconsin in 1982. His research helped identify the disease and its transmission.

    • Tourist Attractions
    1.Jellystone Park™ at Lake Geneva

    is a family-friendly campground and water park located just outside of Merton, WI. The park features a variety of activities, including swimming, fishing, boating, hiking, and biking. There are also several playgrounds, a game room, and a petting zoo.

    2.The Big Foot Beach State Recreation Area

    is a popular spot for swimming, sunbathing, and picnicking. The beach is located on the shores of Lake Michigan and offers stunning views of the water. There are also several hiking trails in the area, as well as a playground and a boat launch.

    3.The Kettle Moraine State Forest

    is a vast forest that is home to a variety of plant and animal life. The forest offers a variety of activities, including hiking, biking, camping, and fishing. There are also several scenic overlooks and waterfalls in the area.

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