The best times to visit Wisconsin Interstate State Park for ideal weather are

May 14th to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Wisconsin Interstate State Park Travel Info

Weather in Wisconsin Interstate State Park

Temperature

Average temperatures in Wisconsin Interstate State Park vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 54th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Wisconsin Interstate State Park, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 83.8°F (28.8°C) with temperatures rarely dropping below 61.8°F (16.6°C) at night.

Wisconsin Interstate State Park Temperatures (Fahrenheit)

Key
High
Average
Low

Wisconsin Interstate State Park Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Wisconsin Interstate State Park Perceived Temperature (F)

Key
High
Average
Low

Wisconsin Interstate State Park Perceived Temperature (C)

Key
High
Average
Low

 

Average Wisconsin Interstate State Park Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 23.1 13.6 4.9
Feb 26.2 15.9 6.4
Mar 42.7 32.3 22.8
Apr 56.8 45 35.1
May 70.5 57.7 46.2
Jun 78.3 66.9 56.2
Jul 82.7 71.4 60.5
Aug 80.3 68.7 57.7
Sep 73.4 60.8 50.1
Oct 58.7 47.8 38.4
Nov 43.9 34.5 26.3
Dec 27.5 19.6 11.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -4.9 -10.2 -15.1
Feb -3.2 -8.9 -14.2
Mar 5.9 0.2 -5.1
Apr 13.8 7.2 1.7
May 21.4 14.3 7.9
Jun 25.7 19.4 13.4
Jul 28.2 21.9 15.8
Aug 26.8 20.4 14.3
Sep 23 16 10.1
Oct 14.8 8.8 3.6
Nov 6.6 1.4 -3.2
Dec -2.5 -6.9 -11.2

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Wisconsin Interstate State Park are January, February, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 2 days of significant precipitation the week of June 18th.

When can you find snow in Wisconsin Interstate State Park? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Wisconsin Interstate State Park.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Wisconsin Interstate State Park (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 0% 0 0
Mar 1% 0 0.1
Apr 8% 0 0.9
May 15% 0 1.6
Jun 17% 0 2.5
Jul 9% 0 1.6
Aug 7% 0 1.5
Sep 8% 0 1.1
Oct 8% 0 1
Nov 6% 0 0.7
Dec 9% 0 0.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 0 0 0
Mar 1 0 0.3
Apr 8 0 2.3
May 15 0 4.1
Jun 17 0 6.4
Jul 9 0 4.1
Aug 7 0 3.8
Sep 8 0 2.8
Oct 8 0 2.5
Nov 6 0 1.8
Dec 9 0 1.5

 

Humidity and Wind

Wisconsin Interstate State Park has some very humid months, with other comfortably humid months. The least humid month is April (51.2% relative humidity), and the most humid month is December (74.4%).

Wind in Wisconsin Interstate State Park is usually calm. The windiest month is April, followed by May and November. April’s average wind speed of around 7.3 knots (8.4 MPH or 13.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early May where average top sustained speeds reach 16 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Wisconsin Interstate State Park.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.9 Light breeze 12.4 Significant breeze
Feb 5.9 Light breeze 12.4 Significant breeze
Mar 6.3 Light breeze 13.1 Significant breeze
Apr 7.3 Gentle breeze 15.1 Significant breeze
May 6.9 Light breeze 15.2 Significant breeze
Jun 5.6 Light breeze 13.5 Significant breeze
Jul 4.8 Light breeze 12.3 Significant breeze
Aug 4.4 Light breeze 11.6 Significant breeze
Sep 5.2 Light breeze 12.6 Significant breeze
Oct 5.9 Light breeze 13.2 Significant breeze
Nov 6.4 Light breeze 13.5 Significant breeze
Dec 5.7 Light breeze 11.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 66.5%
Feb 62%
Mar 58.8%
Apr 51.2%
May 54.5%
Jun 62.7%
Jul 63.8%
Aug 68.2%
Sep 65.8%
Oct 65.1%
Nov 65.2%
Dec 74.4%

 

Is it Safe to Travel to Wisconsin Interstate State Park?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Wisconsin Interstate State Park, the United States is April, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Wisconsin Interstate State Park in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 54.2 in November means 54.2% of the tourists vs. April.

 

 

Overall Wisconsin Interstate State Park Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 75.7°F (24.3°C) and 28.4°F (-2°C) with far warmer temperatures in the later months. Rain is rare with 0 to 5 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 2 to 5 days of precipitation per month. June – August is the second busiest season for tourism in Wisconsin Interstate State Park, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 76.9°F (24.9°C) and 33.9°F (1.1°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: approximately 2 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Wisconsin Interstate State Park to be enjoyable for warm weather travelers. The average high during this season is between 28.4°F (-2°C) and 21.9°F (-5.6°C). On average, it rains or snows a smalll amount: 0 to 3 times per month. These times of year are fairly slow with tourists.

 

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