By Cloudnine Weather LLC

  • Category: Weather
  • Release Date: 2016-09-14
  • Current Version: 2.0.9
  • Adult Rating: 4+
  • File Size: 67.13 MB
  • Developer: Cloudnine Weather LLC
  • Compatibility: iOS 14.0+
Score: 4.8
From 372 Ratings


OpenSummit is your trusted source for the most accurate weather forecast, high-resolution map overlays, air quality, and trail conditions information. “Weather forecasting for the mountains takes extra focus, analysis, and precision, which is exactly what OpenSnow & OpenSummit provide.” - Cody Townsend, Pro Athlete Conveniently compare forecasts on a single screen, plan summit days with 5-day hourly forecasts, view estimated trail conditions, track storms (and wildfire smoke) with high-resolution maps, and stay safe in the backcountry with offline maps. 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 Summit Days 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 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 & Air Quality In High-Resolution 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. Save Offline Maps Headed out of service? Download and save high-resolution satellite and terrain base maps to be able to see your exact location on the map, even without cell service. Free Account Benefits Include: • Favorite Locations List • 2-Day Hourly Forecasts All-Access Benefits Include: • 5-Day Hourly Forecasts • Estimated Trail Conditions • Offline Maps • Current & Forecast Radar • Wildfire Smoke Forecast Maps • Air Quality Map • Real-Time Lightning Map • Estimated Snow Depth Map • Estimated 24-Hour Snowfall Map • Cloud Cover Map • Wind Gust Map • Temperature Map • OpenSnow All-Access Remove Carbon From The Atmosphere 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. — 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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Worth the price

Highly recommended!
By iskidaily

Great data with a useful interface

Easy to use with very good data—especially as conditions change in the mountains. Hands down the best weather forecasts.
By Schnoll

Great app

Love this app, just it daily for all my weather and forecast needs, smoke & air quality forecast is great, rely heavily on weather forecasts! Keep the features coming.
By TalonsReach

A mistake

Have used the app but as they offered more options more became less
By Eljefe 555


Appreciate all the weather news! Keep up the great work.
By MtTe2

Smoke and rain

Wow. Love this app as do all my family members as we have the family plan. We do so much outside and this app and the regions forecasts have really helped us plan our seasonal outings. With every penny .
By Frieda Heel

Great app

This is the best one-stop source of weather forecasts and related info (e.g., smoke, lightning) for hiking season that I’ve found. A great complement to their (even better) OpenSnow app. I’ve been using the combo for several years, and consult one or the other almost daily.
By MikeFromBoulder

Essential resource!

This app gives you the weather information you need to properly prepare for your outdoor adventures. Great features and easy to use. I depend on this app year round for trip planning and decision making regarding conditions.
By Idaho B-rad

Very useful

I use this app all the time. Very useful if you spend a lot of time in the mountains or outdoors. It just keeps getting better too. I’ve been loving all the updates.
By sloganho22

Consistently Exceed Expectations!

The folks at OpenSnow / OpenSummit exceed my expectations every year with new, innovative & detailed weather forecasting maps. I use them extensively to plan which mountain resorts I travel to to capture and enjoy the best snow skiing conditions.
By Tahoe24x7

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