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	100%
Wind Speed	WSW 17 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	10 Apr 08:28 PM PDT

More Information:

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

Extended Forecast for

2 Miles NNW San Ramon CA

Tonight
Low: 50 °F
Showers
Likely then
Chance Rain
Saturday
High: 63 °F
Showers
Likely
Saturday Night
Low: 46 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 44 °F
Chance Rain
and Patchy
Fog
Monday
High: 64 °F
Patchy Fog
then Mostly
Sunny
Monday Night
Low: 43 °F
Mostly Clear
Tuesday
High: 66 °F
Sunny
Tuesday Night
Low: 43 °F
Mostly Clear

Detailed Forecast

Tonight

Rain and thunderstorms likely before 3am, then a slight chance of rain between 3am and 5am. Mostly cloudy, with a low around 50. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain and thunderstorms likely before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 63. South wind 6 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm. Low around 46. South southwest wind 8 to 15 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. High near 58. South southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 40 percent chance of rain, mainly before 11pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. West southwest wind 5 to 10 mph becoming light south southwest after midnight. Winds could gust as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64.

Monday Night

Mostly clear, with a low around 43.

Tuesday

Sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 43.

Wednesday

Sunny, with a high near 68.

Wednesday Night

Partly cloudy, with a low around 45.