Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 18, 12:00 AM PST until February 18, 09:00 AM PST

Current conditions at

LA HONDA (LAHC1)

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

38°F

3°C

Humidity	99%
Wind Speed	ESE 2 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	18 Feb 02:07 AM PST

More Information:

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

Extended Forecast for

2 Miles S Portola Valley CA

Cold Weather Advisory until February 18, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Cold Weather Advisory until February 18, 09:00am
NOW until 9:00am Wed
Cold Weather Advisory
Overnight
Low: 37 °F
Chance Rain
and Breezy
Wednesday
High: 47 °F
Rain then
Chance Rain
Wednesday Night
Low: 40 °F
Rain Likely
then Rain
Thursday
High: 46 °F
Rain then
Chance Rain
Thursday Night
Low: 36 °F
Chance Rain
Friday
High: 49 °F
Mostly Sunny
Friday Night
Low: 39 °F
Partly Cloudy
then Slight
Chance Rain
Saturday
High: 53 °F
Chance Rain

Detailed Forecast

Overnight

A 50 percent chance of rain. Mostly cloudy, with a low around 37. Breezy, with a west wind 14 to 24 mph, with gusts as high as 39 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

Rain, mainly before 2pm. High near 47. Light and variable wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain, mainly after 11pm. Low around 40. South wind 13 to 18 mph becoming light and variable. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain, mainly before 10am. High near 46. West northwest wind 8 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

A 30 percent chance of rain, mainly before 10pm. Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. Northwest wind 6 to 13 mph, with gusts as high as 28 mph.

Friday

Mostly sunny, with a high near 49.

Friday Night

A 10 percent chance of rain after 4am. Partly cloudy, with a low around 39.

Saturday

A chance of rain, mainly after 10am. Partly sunny, with a high near 53.

Saturday Night

Rain, mainly after 10pm. Mostly cloudy, with a low around 47.

Sunday

Rain. Mostly cloudy, with a high near 56.

Sunday Night

Rain. Cloudy, with a low around 51.