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

LA HONDA (LAHC1)

Lat: 37.30523°NLon: 122.25525°WElev: 804.0ft.

56°F

13°C

Humidity	93%
Wind Speed	ESE 3 MPH
Barometer	NA
Dewpoint	54°F (12°C)
Visibility	NA
Last update	10 Apr 11:07 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles S Portola Valley CA

Today
High: 60 °F
Showers
Tonight
Low: 51 °F
Showers
Likely
Saturday
High: 58 °F
Showers
Saturday Night
Low: 48 °F
Showers
Sunday
High: 56 °F
Showers
Sunday Night
Low: 46 °F
Chance Rain
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 48 °F
Partly Cloudy
Tuesday
High: 61 °F
Mostly Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 60. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 11pm, then rain likely, mainly between 11pm and midnight. Mostly cloudy, with a low around 51. South southwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 58. South wind 5 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm. Low around 48. South southwest wind 7 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Sunday

Showers and possibly a thunderstorm. High near 56. Southwest wind around 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 60.

Monday Night

Partly cloudy, with a low around 48.

Tuesday

Mostly sunny, with a high near 61.

Tuesday Night

Mostly clear, with a low around 47.

Wednesday

Mostly sunny, with a high near 64.