Tracking a Strong Cold Front Crossing the Central to Eastern States into the Weekend

A strong cold front will cross the Rockies today, Midwest Friday, Great Lakes to Mississippi Valley Saturday, then East Coast on Sunday with areas of showers and thunderstorms. Cold high pressure in the wake of the front will bring areas of gusty winds and snow to the Rockies and Plains today into Saturday. Severe thunderstorms will be possible Saturday from east Texas into the Mid to Deep South. Read More >

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Current conditions at

LOS ALTOS (LOAC1)

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

52°F

11°C

Humidity	87%
Wind Speed	W 2 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	07 Dec 01:10 AM PST

More Information:

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

Extended Forecast for

Sunnyvale CA

Today

Chance Rain
High: 61 °F
Tonight

Mostly Clear
Low: 38 °F
Friday

Sunny
High: 58 °F
Friday
Night

Mostly Clear
then Patchy
Frost
Low: 34 °F
Saturday

Areas Frost
then Mostly
Sunny
High: 60 °F
Saturday
Night

Partly Cloudy
Low: 39 °F
Sunday

Partly Sunny
High: 63 °F
Sunday
Night

Partly Cloudy
Low: 43 °F
Monday

Mostly Sunny
High: 63 °F

Detailed Forecast

Today

A 50 percent chance of rain after 10am. Mostly sunny, with a high near 61. Light southwest wind becoming west southwest 6 to 11 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Mostly clear, with a low around 38. West northwest wind 3 to 7 mph.

Friday

Sunny, with a high near 58. North northwest wind 6 to 9 mph.

Friday Night

Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. North northwest wind around 5 mph becoming calm in the evening.

Saturday

Areas of frost between 7am and 8am. Otherwise, mostly sunny, with a high near 60. North wind 3 to 6 mph.

Saturday Night

Partly cloudy, with a low around 39.

Sunday

Partly sunny, with a high near 63.