Crater Lake

Crater Lake is the focal point of Crater Lake National Park in Klamath, County, Oregon. The park covers 183,224 acres, including Crater Lake. Crater Lake is the deepest lake in the U.S. at 1,949 feet deep and known as deep water in a sleeping volcano. Mount Mazama, a 12,000-foot-tall volcano, erupted and collapsed approximately 7,700 years ago and formed Crater Lake. Crater Lake has no rivers or streams flowing into it. The U.S. National Park Service manages Crater Lake and the park property.  More Lake Information

Crater Lake Email Updates


Crater Lake Current Weather Alerts

There are no active watches, warnings or advisories.


Crater Lake Weather Forecast



Hi: 65

Wednesday Night

Partly Cloudy

Lo: 44


Mostly Sunny

Hi: 64

Thursday Night

Partly Cloudy

Lo: 46


Partly Sunny

Hi: 61

Friday Night


Lo: 45



Hi: 53

Saturday Night


Lo: 43

Crater Lake Water Level (last 30 days)

Water Level on 9/15: 6167.04 (-2.96)

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