Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

54°F

12°C

Humidity	80%
Wind Speed	W 5 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	12 Apr 02:10 PM PDT

More Information:

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

Extended Forecast for

5 Miles WSW Cupertino CA

This Afternoon
High: 51 °F
Showers
Likely
Tonight
Low: 45 °F
Chance
Showers
Monday
High: 57 °F
Mostly Sunny
Monday Night
Low: 48 °F
Partly Cloudy
Tuesday
High: 59 °F
Mostly Sunny
Tuesday Night
Low: 48 °F
Partly Cloudy
Wednesday
High: 60 °F
Partly Sunny
Wednesday Night
Low: 49 °F
Mostly Cloudy
Thursday
High: 62 °F
Sunny

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 51. West southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers before 9pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 45. West southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 57. Calm wind becoming west northwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

Monday Night

Partly cloudy, with a low around 48. West northwest wind 7 to 9 mph, with gusts as high as 22 mph.

Tuesday

Mostly sunny, with a high near 59. West northwest wind around 8 mph, with gusts as high as 20 mph.

Tuesday Night

Partly cloudy, with a low around 48.

Wednesday

Partly sunny, with a high near 60.

Wednesday Night

Mostly cloudy, with a low around 49.