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

53°F

12°C

Humidity 74%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 11 Apr 11:10 PM PDT
Extended Forecast for

4 Miles S Los Altos Hills CA

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 46. Southwest wind around 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm.  High near 49. Southwest wind 10 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 49 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 9pm, then a slight chance of showers after 11pm.  Partly cloudy, with a steady temperature around 48. West southwest wind 3 to 8 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 54. West northwest wind 3 to 7 mph.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. West northwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56.

    High: 56 °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 55.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Southwest wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 49. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers before 9pm, then a slight chance of showers after 11pm. Partly cloudy, with a steady temperature around 48. West southwest wind 3 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 54. West northwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 48. West northwest wind around 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Sunny, with a high near 58.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Los Altos Hills CA
 37.31°N 122.15°W (Elev. 2598 ft)
11:27 pm PDT Apr 11, 2026
12am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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