Heat Advisory
2026-03-17T10:00:00-07:00

* WHAT...For the Heat Advisory, temperatures between 90 and 98 expected. For the Extreme Heat Warning, dangerously hot conditions with temperatures between 96 and 104 expected. * WHERE...A portion of southwest California. * WHEN...For the Heat Advisory, from 10 AM Monday to 10 AM PDT Tuesday. For the Extreme Heat Warning, from 10 AM Tuesday to 8 PM PDT Friday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors. * ADDITIONAL DETAILS...Warm overnight low temperatures will contribute to the heat risk, especially in the mountain and foothill locations.

Throop Peak Mountain Peaks

Mountain Peaks

Pacific Ranges

Central And Southern California Ranges

Last Updated: March 15, 2026

Throop Peak, located in the Pacific Ranges mountain range of California, is a prominent summit with an elevation of 9,138 feet (2,785 meters).

Summary

This peak offers breathtaking views of the surrounding landscape, making it a popular destination for mountaineers and outdoor enthusiasts. With its close proximity to the Angeles National Forest, Throop Peak provides ample opportunities for hiking, backpacking, and exploration.

During the winter season, Throop Peak and the surrounding mountains experience varying snowpack levels. The snowpack range can vary greatly depending on weather patterns, but typically, from December to March, the snowpack can reach depths of several feet, offering an ideal playground for winter sports such as skiing and snowshoeing.

The mountain's runoff feeds into several creeks and rivers in the region, providing a valuable water source for the local ecosystems. The nearby San Gabriel River benefits from Throop Peak's runoff, contributing to its flow and supporting diverse wildlife and vegetation along its course.

As for the history of the name, Throop Peak is named after Amos G. Throop, the founder of Caltech (California Institute of Technology). The peak's name was officially recognized by the U.S. Board on Geographic Names in 1926. Though there are no specific lore or legends associated with Throop Peak, its rich history and stunning vistas make it an intriguing destination for those seeking adventure and natural beauty in the Pacific Ranges.

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15-Day Weather Outlook

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Heat Advisory
Until 2026-03-16T06:00:00-07:00 • National Weather Service
* WHAT...For the Heat Advisory, temperatures between 90 and 98 expected. For the Extreme Heat Warning, dangerously hot conditions with temperatures between 96 and 104 expected. * WHERE...A portion of southwest California. * WHEN...For the Heat Advisory, from 10 AM Monday to 10 AM PDT Tuesday. For the Extreme Heat Warning, from 10 AM Tuesday to 8 PM PDT Friday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors. * ADDITIONAL DETAILS...Warm overnight low temperatures will contribute to the heat risk, especially in the mountain and foothill locations.