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.

60°F

16°C

Humidity	76%
Wind Speed	SSE 3 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	10 Apr 04:07 PM PDT

More Information:

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

Extended Forecast for

4 Miles WSW Portola Valley CA

This Afternoon
High: 62 °F
Chance
T-storms
Tonight
Low: 50 °F
Rain Likely
Saturday
High: 60 °F
Chance Rain
then Showers
Saturday Night
Low: 47 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 46 °F
Chance Rain
Monday
High: 62 °F
Slight Chance
Rain
Monday Night
Low: 47 °F
Partly Cloudy
Tuesday
High: 63 °F
Sunny

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 62. South southwest wind around 8 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain and thunderstorms likely before 3am, then a chance of rain. Mostly cloudy, with a low around 50. South southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 60. South wind 5 to 15 mph, with gusts as high as 31 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 47. South southwest wind 8 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Sunday

Showers and possibly a thunderstorm. High near 58. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of rain. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.

Monday

A 20 percent chance of rain. Mostly sunny, with a high near 62.

Monday Night

Partly cloudy, with a low around 47.

Tuesday

Sunny, with a high near 63.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 64.