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

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Overcast

57°F

14°C

Humidity	87%
Wind Speed	SSW 5 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	54°F (12°C)
Visibility	9.00 mi
Last update	11 Apr 05:30 AM PDT

More Information:

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

Extended Forecast for

San Mateo CA

Today
High: 64 °F
Chance Rain
then Showers
Tonight
Low: 50 °F
Showers
Sunday
High: 61 °F
Showers
Sunday Night
Low: 49 °F
Slight Chance
Rain then
Partly Cloudy
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 63 °F
Sunny
Tuesday Night
Low: 49 °F
Mostly Clear
Wednesday
High: 64 °F
Mostly Sunny

Detailed Forecast

Today

A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 64. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 1am, then showers likely and possibly a thunderstorm after 2am. Low around 50. South southwest wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm. High near 61. Southwest wind 9 to 11 mph, with gusts as high as 20 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 rain before 11pm. Partly cloudy, with a low around 49. West southwest wind 5 to 10 mph becoming light in the evening. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 49.

Tuesday

Sunny, with a high near 63.

Tuesday Night

Mostly clear, with a low around 49.

Wednesday

Mostly sunny, with a high near 64.

Wednesday Night

Partly cloudy, with a low around 50.