Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

40°F

4°C

Humidity	99%
Wind Speed	S 19 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Wind Chill	31°F (-1°C)
Last update	15 Feb 10:05 PM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Tonight
Low: 48 °F
Rain
Washington's Birthday
High: 48 °F⇓
Rain
Monday Night
Low: 42 °F
Rain and
Breezy
Tuesday
High: 46 °F
Showers and
Breezy
Tuesday Night
Low: 39 °F
Rain then
Chance
Rain/Snow
Wednesday
High: 47 °F
Rain/Snow
Likely then
Rain Likely
Wednesday Night
Low: 40 °F
Rain
Thursday
High: 47 °F
Rain Likely
Thursday Night
Low: 38 °F
Chance Rain
then Slight
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain. Steady temperature around 48. South wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Washington's Birthday

Rain. Temperature falling to around 43 by 4pm. East wind 11 to 15 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain, mainly after 4am. Low around 42. Breezy, with a west wind 20 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday

Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 46. Breezy, with a south southwest wind 21 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night

Rain before 1am, then a chance of rain and snow. Low around 39. West wind 15 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Wednesday

A chance of rain and snow before 7am, then rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain. Low around 40. Chance of precipitation is 80%.

Thursday

Rain likely, mainly before 4pm. Mostly cloudy, with a high near 47.

Thursday Night

A chance of rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 38.

Friday

A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 48.

Friday Night

A chance of rain. Mostly cloudy, with a low around 39.

Saturday

A chance of rain. Partly sunny, with a high near 52.