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.

49°F

9°C

Humidity	95%
Wind Speed	NNW 1 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	12 Apr 12:07 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

Overnight
Low: 49 °F
Chance
Showers
Sunday
High: 51 °F
Showers
Sunday Night
Low: 49 °F
Chance
Showers
Monday
High: 55 °F
Mostly Sunny
Monday Night
Low: 49 °F
Partly Cloudy
Tuesday
High: 56 °F
Mostly Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 55 °F
Mostly Sunny
Wednesday Night
Low: 50 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 49. Southwest wind around 18 mph, with gusts as high as 28 mph. 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 5pm, then a chance of showers and thunderstorms after 5pm. High near 51. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half 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 49. 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 55. Northwest wind 3 to 8 mph.

Monday Night

Partly cloudy, with a low around 49. 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.