Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

49°F

9°C

Humidity 86%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 12 Apr 07:10 AM PDT
Extended Forecast for

5 Miles SSW Los Altos Hills CA

  • Today

    Today: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm.  High near 51. West southwest wind 8 to 13 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 51 °F

    Showers

  • Tonight

    Tonight: A chance of showers before 9pm, then a slight chance of showers after 11pm.  Mostly cloudy, with a low around 45. West southwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. West northwest wind around 8 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. West northwest wind around 8 mph, with gusts as high as 20 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 51. West southwest wind 8 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers before 9pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 45. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 48. West northwest wind around 8 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 59. West northwest wind around 8 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Sunny, with a high near 62.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Los Altos Hills CA
 37.29°N 122.17°W (Elev. 1699 ft)
7:36 am PDT Apr 12, 2026
8am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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