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The Western US Daily Summit
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Labor Day heat wave, cooling trend late next week

A significant late-season heatwave will persist across the West throughout the holiday weekend before eventually relenting mid to late next week.
Posted 4 weeks ago

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

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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…

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