Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

26°F

-3°C

Humidity	98%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Last update	18 Feb 02:35 AM PST

More Information:

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

Extended Forecast for

7 Miles SSW Brentwood CA

Overnight
Low: 36 °F
Partly Cloudy
Wednesday
High: 46 °F
Chance Rain
Wednesday Night
Low: 42 °F
Chance Rain
then Rain
Thursday
High: 45 °F
Rain then
Chance Rain
Thursday Night
Low: 33 °F
Slight Chance
Rain then
Frost
Friday
High: 47 °F
Frost then
Mostly Sunny
Friday Night
Low: 37 °F
Mostly Cloudy
then Patchy
Frost
Saturday
High: 52 °F
Slight Chance
Rain
Saturday Night
Low: 46 °F
Chance Rain

Detailed Forecast

Overnight

Partly cloudy, with a low around 36. South southwest wind 5 to 7 mph.

Wednesday

A chance of rain between 7am and 4pm. Partly sunny, with a high near 46. Southwest wind 7 to 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Rain, mainly after 1am. Steady temperature around 42. South southeast wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain, mainly before 10am. High near 45. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

A 20 percent chance of rain before 10pm. Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 33. West southwest wind 7 to 11 mph, with gusts as high as 23 mph.

Friday

Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 47.

Friday Night

Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 37.

Saturday

A slight chance of rain after 10am. Patchy frost before 7am. Otherwise, partly sunny, with a high near 52.

Saturday Night

A chance of rain. Mostly cloudy, with a low around 46.

Sunday

Rain likely. Mostly cloudy, with a high near 57.

Sunday Night

Rain. Cloudy, with a low around 52.