Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

61°F

16°C

Humidity 96%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Last update 13 Nov 01:10 PM PST
Extended Forecast for

2 Miles NW Cupertino CA

Flood Advisory November 13, 02:06pm until November 13, 03:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory November 13, 02:06pm until November 13, 03:00pm

    NOW until 3:00pm Thu

    Flood Advisory

  • This Afternoon

    High: 67 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 51. East wind 6 to 9 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain before 4pm.  Mostly sunny, with a high near 66. Light and variable wind becoming east northeast around 6 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain after 10pm.  Partly cloudy, with a low around 50. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 10am.  Partly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain.  Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance Rain

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 67. Breezy, with a south wind around 24 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 51. East wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of rain before 4pm. Mostly sunny, with a high near 66. Light and variable wind becoming east northeast around 6 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 20 percent chance of rain after 10pm. Partly cloudy, with a low around 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 51.
Monday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 62.
Monday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Cupertino CA
 37.33°N 122.07°W (Elev. 305 ft)
12:26 pm PST Nov 13, 2025
2pm PST Nov 13, 2025-6pm PST Nov 19, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database