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.

48°F

9°C

Humidity	94%
Wind Speed	SSE 3 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	12 Apr 07:07 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: 54 °F
Showers
Tonight
Low: 45 °F
Chance
Showers
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 48 °F
Partly Cloudy
Tuesday
High: 60 °F
Mostly Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 60 °F
Mostly Sunny
Wednesday Night
Low: 49 °F
Mostly Cloudy
Thursday
High: 63 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 54. West southwest wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A chance of showers before 10pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 45. West southwest wind around 5 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 60. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 48. Northwest wind 5 to 7 mph.

Tuesday

Mostly sunny, with a high near 60. West northwest wind 5 to 8 mph, with gusts as high as 18 mph.

Tuesday Night

Mostly clear, with a low around 47.

Wednesday

Mostly sunny, with a high near 60.

Wednesday Night

Mostly cloudy, with a low around 49.