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

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

51°F

11°C

Humidity	96%
Wind Speed	SW 17 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	11 Apr 12:28 PM PDT

More Information:

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

Extended Forecast for

3 Miles WSW San Ramon CA

This Afternoon
High: 57 °F
Showers
Likely
Tonight
Low: 45 °F
Showers then
Showers
Likely
Sunday
High: 54 °F
Showers
Sunday Night
Low: 46 °F
Chance
Showers then
Partly Cloudy
Monday
High: 58 °F
Mostly Sunny
Monday Night
Low: 45 °F
Mostly Clear
Tuesday
High: 61 °F
Sunny
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 61 °F
Sunny

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 57. South wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers and thunderstorms after 4am. Low around 45. Southwest wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 54. Southwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 46. Southwest wind 6 to 14 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 58. West wind 5 to 8 mph.

Monday Night

Mostly clear, with a low around 45.

Tuesday

Sunny, with a high near 61.

Tuesday Night

Mostly clear, with a low around 44.

Wednesday

Sunny, with a high near 61.

Wednesday Night

Partly cloudy, with a low around 47.