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The Western US Daily Summit
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Significant flash flood risk for the Southwest

An active monsoon pattern remains in place over the Southwest with heavy rain expected from Friday through Sunday along with a high risk for…
Posted 2 days ago

Getting Started Guide

OpenSummit is your trusted source for the most accurate weather forecast, high-resolution map overlays, and trail conditions information.

Proprietary Weather Forecast Data

Our goal is to create the most accurate weather forecast, period.  On July 1, 2021, we began updating the forecasts on OpenSummit with…

Wildfire Smoke Forecast Maps

Don't get caught in the smoke. Our wildfire smoke maps highlight the approximate locations of current fires and forecast downstream smo…

Air Quality Map

In addition to the wildfire smoke forecast maps, you can now view the real-time air quality index on OpenSummit to help you plan your next a…

Estimated Trail Conditions

Before heading out on your next hike or mountain bike ride, check the estimated trail conditions in the OpenSummit app.

Offline Maps

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OpenSummit Commits 1% of All-Access Sales to Carbon Removal Technologies

In 2019, we learned how to calculate our carbon footprint and offset this impact.

Lightning Safety Tips

When there is lightning, the only safe place to be is inside a car or a substantial, enclosed structure.

How To Read Clouds Above Treeline

When you're above treeline in the summer, using your eyes is a key way to stay safe.

Temperature Inversion

Temperature inversions are observed when the air temperature increases with height.

How To Read Radar

Radar shows us if there is precipitation falling through the sky and helps you to answer the question, "Is it currently or about to rain or snow?".