National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

59°F

15°C

Humidity 75%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 20 Jun 03:10 AM PDT
Extended Forecast for

2 Miles ESE Portola Valley CA

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 71 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. West wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

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

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. Calm wind becoming west northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 53. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Portola Valley CA
 37.35°N 122.19°W (Elev. 1220 ft)
Last Update:
1:26 am PDT Jun 20, 2026
Forecast Valid:
4am PDT Jun 20, 2026-6pm PDT Jun 26, 2026
 
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