Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Mostly Cloudy

59°F

15°C

Humidity	87%
Wind Speed	SSE 5 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	55°F (13°C)
Visibility	7.00 mi
Last update	11 Apr 01:35 PM PDT

More Information:

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

Extended Forecast for

Sunnyvale CA

This Afternoon
High: 64 °F
Showers
Tonight
Low: 48 °F
Showers then
Showers
Likely
Sunday
High: 61 °F
Showers
Sunday Night
Low: 45 °F
Slight Chance
Showers then
Patchy Fog
Monday
High: 64 °F
Patchy Fog
then Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 66 °F
Mostly Sunny
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 67 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 64. South wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Low around 48. South southeast wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers and thunderstorms after 4pm. High near 61. South wind 8 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 20 percent chance of showers before 11pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. West southwest wind 5 to 10 mph becoming light southwest in the evening.

Monday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Mostly sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 44.

Wednesday

Mostly sunny, with a high near 67.

Wednesday Night

Partly cloudy, with a low around 47.