By Cloudnine Weather LLC

  • Category: Weather
  • Release Date: 2016-09-14
  • Current Version: 3.0.0
  • Adult Rating: 4+
  • File Size: 74.02 MB
  • Developer: Cloudnine Weather LLC
  • Compatibility: iOS 14.0+
Score: 4.78
From 426 Ratings


OpenSummit is your trusted source for the most advanced weather forecast, high-resolution weather maps, air quality, and trail conditions information. “From smoke to lightning, trail conditions to wind chill, OpenSummit is the one-stop-shop for planning my summer adventures." – Cody Townsend, Pro Athlete Get Outside With Confidence Choose the best day and time for your next adventure. We color-code detailed hourly data so that you can quickly find an ideal weather window. 5-day hourly forecasts include the chance of precipitation, chance of lightning, temperature, wind speed & direction, cloud cover, and more. Compare Forecasts Finding the ideal location for your next adventure based on the weather can feel overwhelming. With OpenSummit, deciding where to go is easy. Compare the latest weather forecasts for your favorite locations on a single screen in just a few seconds. View Estimated Trail Conditions Before heading out on your next hike or mountain bike ride, check our estimated trail conditions. We use recent weather conditions to estimate if the trail is snow-covered, muddy, a little wet, or dry, and this information is updated every hour. Track Storms With High-Resolution Maps We make it easy (and beautiful) to see if there is precipitation and wildfire smoke heading towards your location, and if there is snow cover, lightning, or poor air quality nearby. You can also take a peek into the future with our 2-day forecast animations for precipitation, wildfire smoke, cloud cover, wind gust, and temperature, as well as the global air quality forecast for the next 5 days. Climate Change Commitment To help mitigate the threat of climate change, we have committed 1% of our All-Access subscription sales to the direct removal of carbon dioxide from the atmosphere and its sequestration in secure, long-term storage. OpenSummit All-Access • 5-Day Hourly Forecasts • Estimated Trail Conditions • Current & Forecast Radar • Wildfire Smoke Forecast Maps • Air Quality Map • Air Quality Forecast Map • Real-Time Lightning Map • Estimated Snow Depth Map • Estimated 24-Hour Snowfall Map • Cloud Cover Map • Wind Gust Map • Temperature Map • Offline Maps • OpenSnow All-Access — Free Trial — New subscribers that opt-in to the free trial receive the full OpenSummit All-Access experience, with no credit card required, for the next 14 days. If you choose not to purchase All-Access after the 14-day free trial is over, you will be automatically downgraded to a free account and not charged. You will still be able to receive email storm updates and view limited weather forecast data. — All-Access, In-App Purchase — Payment for All-Access entitles you to All-Access usage and its features. All-Access Single is an auto-renewable subscription, which will renew yearly at $29.99. All-Access Group is an auto-renewable subscription, which will renew yearly at $39.99. Payment will be charged to the user's iTunes Account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. The account will be charged for renewal within 24-hours prior to the end of the current period and identify the cost of the renewal. If the auto-renewal fails due to a payment issue, you will still be able to access the paid content for 16 days while Apple attempts to collect payment. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Full terms and conditions can be found here: and Sales through Apple iTunes will be governed by Apple’s refund policy. We value all of our customers and encourage you to provide feedback on your experience. Please get in touch with us at


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I was wrong

Missed the tab
By Eljefe 555

So helpful!

I live in tahoe and have used the smoke / air quality forecasts every day the last two summers when the fire season heated up. Love all the work the OpenSummit/OpenSnow has made happen!
By Bbensch09

Smoke (surface)

Very disappointed in your map that details smoke on the surface. Very low visibility and terrible air quality here in Santa Fe New Mexico. But your map shows nothing amiss. Today the density of smoke is much greater than normal although every day for weeks we’ve had smoke in the air and reduced visibility of our mountains. Just wanted you to know that I tried hello@open couldn’t get that to open up no matter how many different ways I tried. Weather channels app also shows perfectly clear air here. Boggling my mind. at least their website provide you with a very easy way to give feedback.
By prgregory

Saved my summer road trips from ruin

The mountain weather is now so much more complicated in the West with fires and smoke. This app brings everything together and lets you plan your missions with remarkable insight. For the last 3 summers, my road trips across the US would have been nightmares without this valuable info. What a great bargain, too.
By Kav, MD

Doesn’t do much unless you subscribe

It do doesn’t give you info unless you subscribe.
By MommyinTruckee

Unmatched forecasting

I live on a large lake in northern Utah that seems to make it difficult to predict weather forecasts. Open Summit is the only source I use now to view upcoming storms and get reliable weather predictions. I really love the smoke (surface) overlay, and air quality forecast in summer months in order to plan for days that my children should play indoors. I love this app and am constantly sharing screenshots of maps to family and friends. Well worth the $20 annual fee.
By EMunkW

Phenomenal App

Great job to the team, this is incredible!
By Dave42299

Best mountain weather app

I use it for all of my climbs! Great app and definitely recommend buying it
By Troy wrightstone

Great App

Love this app always consult it when planning outdoor activities. Especially like the breakdown of rain, lightening etc.

THE primary source for Mountain weather

Absolutely vital resource for anyone planning travel and activities in the Colorado mountains, or, frankly any other US mountain region. The maps and layers are the best. For winter use, the sister app OpenSnow is also a must have.
By DrewStansen

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