Check Water Temperatures Before Your River Visit

Water temperatures below 70 degrees causes you to lose breathing & muscle control which can lead to drowning. The colder the water the more extreme the impacts. Enjoy the river by staying dry when water is cold. Read More >

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Last Map Update: Thu, Jun 18, 2026 at 9:50:33 am PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

Red Flag Warning

Small Craft Advisory

Hazardous Seas Warning

Beach Hazards Statement

Fire Weather Watch

Dry Storm Potential Late Week

The ongoing heatwave is finally starting to wind down, but hot and dry fuels have left fuels more receptive to fire. While uncertainty remains high, there is a chance (10-20%) of isolated, mostly dry, thunderstorms over high terrain on Thursday and Friday this week. Any storms will pose a risk to outdoor recreation and may start new fires.