Tracking Areas of Fire Weather, Severe Weather, and Winter Weather

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

43°F

6°C

Humidity	89%
Wind Speed	W 4 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Wind Chill	41°F (5°C)
Last update	19 Feb 10:10 AM PST

More Information:

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

Extended Forecast for

2 Miles S Cupertino CA

Cold Weather Advisory February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Today
High: 49 °F
Chance Rain
Tonight
Low: 36 °F
Partly Cloudy
then Areas
Frost
Friday
High: 52 °F
Areas Frost
then Partly
Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 56 °F
Mostly Sunny
Saturday Night
Low: 46 °F
Slight Chance
Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 50 °F
Chance Rain
Monday
High: 64 °F
Rain Likely

Detailed Forecast

Today

A 40 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 49. West northwest wind around 18 mph, with gusts as high as 34 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Areas of frost after 4am. Otherwise, partly cloudy, with a low around 36. West northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 23 mph.

Friday

Areas of frost before 8am. Otherwise, mostly cloudy, with a high near 52. Light and variable wind.

Friday Night

Partly cloudy, with a low around 38. Light and variable wind.

Saturday

Mostly sunny, with a high near 56. South wind 6 to 11 mph, with gusts as high as 25 mph.

Saturday Night

A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 46.

Sunday

A 40 percent chance of rain. Partly sunny, with a high near 61.

Sunday Night

A chance of rain. Mostly cloudy, with a low around 50.