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Bounce House Wind Check

Most inflatable manuals set the limit between 15 and 25 mph, and it is the gusts that lift units, not the average wind. Enter the party's ZIP code, the hours and the limit from your manual, and this reads the National Weather Service forecast hour by hour: go, watch when gusts come within 5 mph of your limit, or no go.

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  • Only the location goes to weather.gov

A forecast, not a measurement. Check it again the morning of, carry an anemometer, and the manual for each unit is the limit that governs it. US ZIP codes for now.

From your manual. Prefilled with 15 mph, where guide 7 reports most manuals land.

Why the check reads gusts

A unit rarely lifts in steady wind. It lifts when a gust gets under it, which is why guide 7 says to check gusts rather than the average and to decide from the forecast before the truck leaves. The average wind can sit at 9 mph while gusts reach 20. The check judges each hour on the stronger of the two numbers.

Where your limit comes from

The standard for inflatables, ASTM F2374, asks that designs assume at least 25 mph of wind and that the operating limit sit at least 5 mph below what the anchoring was verified for. That is why most manuals land around 15 mph. The number that governs a unit is the one in its own manual, so the check never picks it for you.

Wind limits and anchoring, in fullPlanning a Saturday of deliveries

Published wind limits for inflatables

Every source lands between 15 and 25 mph. The lower numbers are the operating limits; 25 is what the design has to withstand.

SourceLimitWhat it says
ASTM F2374, the standard for inflatable amusement devices25 mph design, operating at least 5 mph lowerDesigns must assume at least 25 mph, and the operating limit must sit at least 5 mph below the wind speed the anchoring was verified for. Several states have adopted it into law.
US Consumer Product Safety Commission, August 201915 to 25 mph"Maximum wind speed should be no more than 15 to 25 mph." Swaying treetops are a sign it is too windy.
i2K Inflatables, a manufacturer, February 202520 mphNever use inflatables in winds over 20 mph, and take them down when it gets too windy.
Operating manuals in the fieldAbout 15 mphWhere manuals commonly land once the 5 mph margin comes off the anchoring rating. The manual for each unit is the limit that governs it.

What the research found

The first study of wind related bounce house accidents, led by John Knox at the University of Georgia and published in the Bulletin of the American Meteorological Society in 2022, found 132 incidents worldwide from 2000 to 2021, with at least 479 injuries and at least 28 deaths. As FOX Weather reported it, more than 70 percent had an identified weather cause, such as a cold front, a dust devil or thunderstorm winds, and 22 percent of the incidents with nearby wind data happened below the ASTM limit. The study's site, weathertobounce.com, now counts at least 536 injuries and 33 deaths from 2000 to 2026.

A sunny day is not a safe day. A gust front from a storm miles away, or a dust devil on a hot and otherwise calm afternoon, can lift a unit while the average wind sits well under the limit. That is why the check reads gusts hour by hour, and why someone at the party watches the sky.

Put it on your website

Free to use on your own site, so customers get a straight answer before they call. Paste this where you want the tool to appear. It sizes itself to fit, and works in Wix, Squarespace, WordPress and plain HTML.

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Frequently asked questions

What wind speed is unsafe for a bounce house?
Most manufacturers set the limit between 15 and 25 mph of sustained wind, and many land at 15. Your unit's manual is the number that governs it. Gusts matter more than the average, so compare the forecast gusts, not just the wind speed, to that limit.
Can you set up a bounce house in the wind?
Only below the manual's limit, fully anchored, and with an adult watching who knows to clear it if the wind rises. If the forecast gusts reach the limit during the party, do not set up: call the customer that morning and reschedule.
What should I do if the wind picks up during a party?
Get everyone out first, stop admitting riders, then deflate. A deflated unit on the ground is safe; a fully inflated one in rising wind is a sail. Adding stakes is not the answer once the wind is at the limit.
How accurate is the forecast?
It is the National Weather Service's gridded forecast for the area around the ZIP code, updated through the day. It gets more reliable closer to the date, which is why you check again the morning of and measure on site with an anemometer.
Does it work in Canada?
Not yet. The forecast comes from the US National Weather Service, which covers the United States. Canadian forecasts would come from Environment Canada's open data, and that is on the list.
How windy is too windy for a bounce house?
When the gusts reach the limit in the unit's manual, usually about 15 mph, and never above 20 to 25 mph. The CPSC puts the maximum at 15 to 25 mph and says swaying treetops are a sign it is too windy. Check gusts rather than the average, and clear the unit before the wind reaches the limit.
What is the maximum wind speed for inflatables?
ASTM F2374, the standard for inflatable amusement devices, requires designs to assume at least 25 mph and the operating limit to sit at least 5 mph below what the anchoring was verified for. Most manuals land at 15 mph, i2K Inflatables says never above 20, and the CPSC says no more than 15 to 25.

Sources

Forecast data: US National Weather Service, api.weather.gov, public domain. ZIP code locations: US Census Bureau, 2020 ZCTA Gazetteer. Wind limits and the go, watch and no go rule: guide 7, citing ASTM F2374 and manufacturer manuals. Wind limits: US Consumer Product Safety Commission, release 19-181, 8 August 2019; i2K Inflatables, "How Windy Is Too Windy to Set up Inflatable Jumpers?", updated 3 February 2025. Research: Knox and others, Bulletin of the American Meteorological Society, 2022, as reported by FOX Weather on 10 August 2022 and Safety+Health on 1 September 2022; weathertobounce.com, read 31 October 2026.

Rentopus is booking software for party rental companies. Your agreement carries your wind rule, so when you call a customer about the forecast, the terms are already signed.

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