Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Clear

55°F

13°C

Humidity	76%
Wind Speed	NNW 9 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	21 Jan 01:35 PM PST

More Information:

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

Extended Forecast for

Sunnyvale CA

This Afternoon
High: 62 °F
Mostly Cloudy
Tonight
Low: 44 °F
Mostly Cloudy
Thursday
High: 63 °F
Patchy Fog
then Mostly
Sunny
Thursday Night
Low: 43 °F
Mostly Clear
then Patchy
Fog
Friday
High: 60 °F
Patchy Fog
then Sunny
Friday Night
Low: 41 °F
Mostly Clear
Saturday
High: 62 °F
Sunny
Saturday Night
Low: 38 °F
Mostly Clear
Sunday
High: 62 °F
Partly Sunny

Detailed Forecast

This Afternoon

Mostly cloudy, with a high near 62. Calm wind.

Tonight

Mostly cloudy, with a low around 44. Calm wind.

Thursday

Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. Calm wind becoming north northwest around 6 mph in the afternoon.

Thursday Night

Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43. Calm wind.

Friday

Patchy fog before 11am. Otherwise, mostly sunny, with a high near 60. Light and variable wind.

Friday Night

Mostly clear, with a low around 41.

Saturday

Sunny, with a high near 62.

Saturday Night

Mostly clear, with a low around 38.

Sunday

Partly sunny, with a high near 62.