With temperatures forecast to reach the 80s along the coast and 90s inland, the National Weather Service advises residents to stay hydrated and limit strenuous outdoor activities.

Daytime highs will be mostly in the high 60s to mid 70s. Overnight lows will be mostly in the mid to high 40s, with some areas around the bay reaching the mid 50s.

If you’re surprised by current high temperatures — compared to what your phone’s weather app reports — these meteorologists say there’s a reason for that.

The National Weather Service forecast for the greater San Francisco Bay Area for Monday calls for up to 100 percent chances of rain and showers throughout the day. On Presidents' Day, daytime highs will be mostly in the mid to high 50s on the coast, and ...

Daytime highs will be mostly in the low to high 80s on the coast, and mid 80s to low 90s around the bay, and low to mid 90s inland. Overnight lows will be mostly in the mid 50s to low 60s.