Our Proprietary 10-Day Forecast

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

General Climate


Oconomowoc, Wisconsin, experiences a humid continental climate, characterized by warm, humid summers and cold, snowy winters. The city's proximity to Lake Michigan influences its climate, resulting in milder temperatures compared to other inland areas in the state.

Temperature

    •   Average Annual Temperature

46.6°F (8.1°C)

    •   Average Summer Temperature (June-August)

69.3°F (20.7°C)

    •   Average Winter Temperature (December-February)

22.6°F (-5.2°C)

    •   Record High Temperature

108°F (42.2°C)

    •   Record Low Temperature

-33°F (-36.1°C)

Precipitation

    •   Average Annual Precipitation

33.03 inches (839.3 mm)

    •   Average Snowfall

49.5 inches (125.7 cm)

    •   Wettest Month

June (4.52 inches or 114.8 mm)

    •   Driest Month

February (1.57 inches or 39.9 mm)

Humidity

    •   Average Annual Humidity

73%

    •   Highest Humidity

July (78%)

    •   Lowest Humidity

January (65%)

Wind

    •   Average Wind Speed

10.2 mph (16.4 km/h)

    •   Prevailing Wind Direction

West-Southwest

Sunshine

    •   Average Annual Sunshine

2,456 hours

    •   Sunniest Month

July (310 hours)

    •   Cloudiest Month

December (142 hours)

Tornado Activity

    •   Average Number of Tornadoes per Year

0.5

    •   Tornado Risk

Moderate

Climate Change Impact

    •   Rising Temperatures

Oconomowoc has experienced a gradual increase in average temperatures over the past century. This trend is expected to continue in the future, leading to hotter summers and milder winters.

    •   Changing Precipitation Patterns

Climate change is also affecting precipitation patterns in the region. While the total annual precipitation is projected to remain relatively stable, the intensity and frequency of heavy rainfall events are likely to increase.

    •   Extreme Weather Events

The frequency and severity of extreme weather events, such as heat waves, droughts, and floods, are also expected to increase due to climate change.

Overall, Oconomowoc's climate is characterized by warm, humid summers and cold, snowy winters, with moderate precipitation and a risk of tornadoes. Climate change is impacting the city's climate, leading to rising temperatures, changing precipitation patterns, and an increased risk of extreme weather events.

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

    •   Oconomowoc Lake is a glacial lake formed over 10,000 years ago.

    •   The city is home to the Fowler Lake State Natural Area, a 1,200-acre preserve featuring wetlands, prairies, and oak forests.

    •   The Oconomowoc River, which flows through the city, was once a major canoe route for Native Americans.

Science

    •   The University of Wisconsin-Madison has a field station in Oconomowoc dedicated to environmental research.

    •   The city is home to the Oconomowoc Astronomical Society, which operates an observatory.

    •   In 1887, Oconomowoc became the first city in Wisconsin to install electric streetlights.

Personalities

    •   The city's namesake, Chief Oconomowoc, was a prominent Potawatomi leader.

    •   John Muir, the famous naturalist, visited Oconomowoc in 1871 and was inspired by its natural beauty.

    •   William Horlick, the inventor of malted milk, had a summer home in Oconomowoc.

Tourist Attractions
1.Lapham Peak State Park:

Located just a short drive from Oconomowoc, this park offers scenic hiking trails, a 1,256-foot observation tower with panoramic views, and opportunities for picnicking and cross-country skiing.

2.Oconomowoc Lake:

This beautiful lake is a popular destination for boating, fishing, swimming, and kayaking. Visitors can rent boats from local marinas or simply enjoy the views from the shore.

3.Olympia Resort & Conference Center:

This sprawling resort features a championship golf course, a luxurious spa, and a variety of dining options. Visitors can also enjoy the resort's indoor and outdoor pools, fitness center, and tennis courts.

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