By Cloudnine Weather LLC

  • Category: Weather
  • Release Date: 2016-09-14
  • Current Version: 1.7.6
  • Adult Rating: 4+
  • File Size: 92.23 MB
  • Developer: Cloudnine Weather LLC
  • Compatibility: iOS 12.0+
Score: 4.65
From 121 Ratings


OpenSummit is your trusted source for the best mountain weather forecasts, high-resolution map overlays, and trail conditions information. Conveniently displayed on your iOS device, find the latest 5-day hourly forecast for your favorite locations, receive estimated trail conditions, and view our high-resolution maps, all at your fingertips. Forecasts for Mountains, Not Nearby Towns Most weather apps only provide forecasts for nearby towns. With OpenSummit, you'll receive hourly forecasts for the actual mountain location (and elevation). This means that our precipitation, lightning, temperature, and wind forecasts are more accurate when planning your next mountain objective. Plan With Confidence Choose the safest day and time for your adventure. We color-code detailed hourly data so that you can quickly find your best weather window. 5-day hourly forecasts include the chance of precipitation, chance of lightning, temperature, wind speed & direction, and cloud cover. Know Trail Conditions In Advance We use recent weather conditions to estimate if the trail is muddy, a little wet, or dry, and we update this every hour. But don’t take our word – we offer one-click access to a visual history of precipitation and temperature during the past 24 hours so that you can make your own call. High-Resolution Maps We make it easy (and beautiful) to see if there is precipitation and wildfire smoke heading toward your favorite mountain, or if there is snow cover nearby. And take a peek into the future with our 8-hour forecast animations for precipitation, wildfire smoke, and temperatures. All-Access Features Include: • Estimated Trail Conditions • 5-Day Hourly Forecasts • Current Radar Map Layer • Forecast Radar Map Layer • Wildfire Smoke Map Layer • Snow Depth Map Layer • Temperature Map Layer • OpenSnow All-Access "If you’re looking for a great weather app for snow and mountains, then look no further than OpenSnow & OpenSummit." - Chris Davenport, Pro Skier "If you are a person who likes to hike, bike or just visit the high country and want to have the most accurate weather forecast at various elevations, OpenSummit is absolutely the best app" - App Review "I am using the weather and map features to plan everything from bike rides to hikes to backpacking trips. The satellite map overlay is awesome, and so is the basecamp feature with an at a glance look at your favorite mountains. Love OpenSummit!" - App Review — All-Access, In-App Purchase — Payment for All-Access entitles you to All-Access usage and its features. All-Access is an auto-renewable subscription, which will renew yearly at $19.99. 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 at that time. 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


OpenSummit ScreenshotOpenSummit ScreenshotOpenSummit ScreenshotOpenSummit ScreenshotOpenSummit Screenshot


The best

I love being able to browse nearby mountains and forecasted conditions to make plans. And the addition of the smoke map this summer has been invaluable for my day-to-day, non-adventuring life. Bundled with OpenSnow, these apps are the best $20 I spend each year, no joke.
By carovan80

Da best!

Really tho, the best app for weather while keeping safety in mind for the backcountry in any season. The more beta the more bettah!
By jessb_bright

I’m not getting smoke layers on iPhone. Comes in on iPad. What’s up?

Noreen turquoise
By Noreen turquoise

The best snow app is now even better

Everyone has forever just talked about Joel’s forecast while talking on the lifts. Now there’s an amazing new app that is a steal at $19 for 6-10 day forecast access & constantly improving. This group of guys love skiing and forecasting & it shows.
By Ricolamada

Your one-stop app for mountain and weather lovers!

Absolutely loving this app. This replaces the need to reference different websites for smoke, snow depth, or detailed elevation conditions and forecasts. And it has a beautiful design to boot along with running smoothly. I should also add the web interface is great too! Awesome work!
By NoNameToday777

Not accurate

I’m standing outside, staring at smoke in the sky, and this app says there is zero smoke. Not accurate!
By DuckHunter57

Great resource with helpful data

Hike and bike throughout the Sierras and Open Summit is a quick way to help plan an outing. Estimates of smoke coverage are especially much appreciated
By ldcoury

Must have forecasting for the mountains

The smoke forecast map has been sooo useful with all the wildfires.
By Jbh46

So reliable

I look at Open Summit and Open Snow before every hike, Jeep or ski day. It has never let me down. Such a valuable resource!
By Paige 1978*^

Easy to use

The basic app is great but the all-access is definitely worth the $19
By ColoWanderer


More by Cloudnine Weather LLC



Cloudnine Weather LLC



Cloudnine Weather LLC