Our Proprietary 10-Day Forecast

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Current warnings over Lake Delton, 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 Lake Delton, 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 Lake Delton, 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 Sauk 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 Lake Delton, 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 Lake Delton, 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 Lake Delton, 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 Lake Delton, 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 Lake Delton, 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 Sauk 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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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
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  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 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)
Lake Delton, WI Climate Summary

General Climate

Lake Delton, Wisconsin experiences a humid continental climate, characterized by warm, humid summers and cold, snowy winters. The city is located in USDA hardiness zone 5a, which means that the average annual minimum temperature is between -20 and -15 degrees Fahrenheit.

Temperature

The average annual temperature in Lake Delton is 46.3 degrees Fahrenheit. The warmest month is July, with an average temperature of 72.2 degrees Fahrenheit. The coldest month is January, with an average temperature of 18.7 degrees Fahrenheit.

Precipitation

The average annual precipitation in Lake Delton is 33.16 inches. The wettest month is June, with an average of 4.62 inches of rain. The driest month is February, with an average of 1.55 inches of rain.

Snowfall

The average annual snowfall in Lake Delton is 45.3 inches. The snowiest month is January, with an average of 11.1 inches of snow.

Sunshine

Lake Delton receives an average of 2,331 hours of sunshine per year. The sunniest month is July, with an average of 296 hours of sunshine. The cloudiest month is December, with an average of 134 hours of sunshine.

Wind

The average annual wind speed in Lake Delton is 10.4 miles per hour. The windiest month is March, with an average wind speed of 12.2 miles per hour. The calmest month is August, with an average wind speed of 9.1 miles per hour.

Climate Change

The climate in Lake Delton is changing, as it is in the rest of the world. The average annual temperature has increased by 1.3 degrees Fahrenheit since 1895. The average annual precipitation has also increased by 2.5 inches since 1895. The number of days with extreme heat (90 degrees Fahrenheit or higher) has also increased since 1895.

Climate Summary Table

| Month | Average Temperature (°F) | Average Precipitation (inches) | Average Snowfall (inches) | Average Sunshine (hours) |
|---|---|---|---|---|
| January | 18.7 | 1.55 | 11.1 | 134 |
| February | 22.4 | 1.61 | 7.2 | 157 |
| March | 33.6 | 2.42 | 6.1 | 186 |
| April | 46.2 | 3.05 | 1.7 | 216 |
| May | 57.5 | 3.82 | 0.2 | 252 |
| June | 67.1 | 4.62 | 0.0 | 296 |
| July | 72.2 | 3.87 | 0.0 | 296 |
| August | 70.2 | 3.55 | 0.0 | 275 |
| September | 61.2 | 3.12 | 0.0 | 229 |
| October | 49.7 | 2.52 | 0.2 | 186 |
| November | 36.8 | 2.04 | 1.6 | 134 |
| December | 23.9 | 1.81 | 6.3 | 134 |

Sources

    •   National Oceanic and Atmospheric Administration (NOAA)
    •   Wisconsin State Climatology Office
    •   University of Wisconsin-Madison Department of Atmospheric and Oceanic Sciences

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

    •   Lake Delton formed approximately 10,000 years ago as a glacial lake.

    •   The lake is fed by the Wisconsin River and several smaller streams.

    •   It supports a diverse ecosystem, including fish, waterfowl, and amphibians.

    •   The surrounding area is home to oak-hickory forests and wetlands.

Science

    •   The University of Wisconsin-Stevens Point operates a field station on the lake, conducting research on water quality, fish populations, and other ecological topics.

    •   The lake is a popular destination for limnologists studying lake ecosystems.

Personalities

  • H.H. Bennett:

    A prominent conservationist who helped establish the Soil Conservation Service, lived in Lake Delton during his retirement.

  • Frank Lloyd Wright:

    The renowned architect designed the Seth Peterson Cottage on the lake, which is now a National Historic Landmark.

  • Tommy Bartlett:

    A famous water skier and showman, established the Tommy Bartlett Exploratory in Lake Delton, which showcases his water skiing performances and other attractions.

    • Tourist Attractions
    1.Noah's Ark Waterpark

    - Noah's Ark Waterpark is the largest waterpark in the United States, with over 50 water slides and attractions. The waterpark is divided into four themed areas: The Big Kahuna, The Black Hole, The Tornado, and The Wave Pool.

    2.Mt. Olympus Water & Theme Park

    - Mt. Olympus Water & Theme Park is a combination waterpark and theme park. The waterpark features over 30 water slides and attractions, while the theme park has over 40 rides and attractions.

    3.Tommy Bartlett Exploratory

    - The Tommy Bartlett Exploratory is a science museum that features over 100 interactive exhibits. The museum is divided into four themed areas: The Science of Motion, The Science of Light, The Science of Sound, and The Science of Life.

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