Monsoon Activity Continues in the Rockies and High Plains; Heat Builds in the West

Monsoon moisture will continue to bring a threat of heavy rain and flash flooding from the Intermountain West to the High Plains. Complex terrain, burn scars, and urban areas will be especially vulnerable to flooding. Heavy rain along a nearly stationary front in the South and Southeast could produce flash flooding. Dry lightning in Oregon could initiate new fires. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.354722°NLon: 122.141667°WElev: 539ft.

NA

62°F

17°C

Humidity 76%
Wind Speed NE 2 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 01 Aug 10:10 PM PDT
Extended Forecast for

2 Miles NNW Portola Valley CA

  • Tonight

    Tonight: Patchy fog between 2am and 4am.  Otherwise, increasing clouds, with a low around 54. South southwest wind around 5 mph becoming calm  in the evening.

    Mostly Clear
    then Patchy
    Fog

    Low: 54 °F

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.

    Patchy Fog
    then Sunny

    High: 84 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 53. East wind around 6 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 53 °F

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    Becoming
    Sunny

    High: 84 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 53. West northwest wind 5 to 9 mph becoming light west  after midnight.

    Mostly Clear

    Low: 53 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Partly Cloudy

    Low: 55 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    Mostly Sunny

    High: 82 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

Detailed Forecast

Tonight
Patchy fog between 2am and 4am. Otherwise, increasing clouds, with a low around 54. South southwest wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 53. East wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 53. West northwest wind 5 to 9 mph becoming light west after midnight.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
2 Miles NNW Portola Valley CA
 37.42°N 122.23°W (Elev. 397 ft)
3:01 pm PDT Aug 1, 2021
10pm PDT Aug 1, 2021-6pm PDT Aug 8, 2021
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database