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.

27°F

-3°C

Humidity	98%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	27°F (-3°C)
Visibility	NA
Last update	18 Feb 01:25 AM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Overnight
Low: 32 °F
Partly Cloudy
Wednesday
High: 39 °F
Chance Snow
Wednesday Night
Low: 37 °F
Chance Snow
then
Rain/Snow
Thursday
High: 41 °F
Breezy.
Rain/Snow
then Chance
Snow
Thursday Night
Low: 33 °F
Slight Chance
Snow then
Mostly Clear
Friday
High: 43 °F
Mostly Sunny
Friday Night
Low: 37 °F
Mostly Cloudy
then Slight
Chance Snow
Saturday
High: 49 °F
Slight Chance
Rain/Snow
then Chance
Rain
Saturday Night
Low: 46 °F
Rain and
Breezy

Detailed Forecast

Overnight

Partly cloudy, with a low around 32. Northwest wind 8 to 15 mph, with gusts as high as 29 mph.

Wednesday

A chance of snow between 7am and 4pm. Partly sunny, with a high near 39. Southwest wind 6 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain and snow. Steady temperature around 37. Southwest wind 5 to 14 mph becoming south southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Thursday

Rain and snow, becoming all snow after 7am. High near 41. Breezy, with a west wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Thursday Night

A 20 percent chance of snow before 10pm. Mostly clear, with a low around 33. West wind 10 to 18 mph, with gusts as high as 33 mph.

Friday

Mostly sunny, with a high near 43.

Friday Night

A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 37.

Saturday

A slight chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 49.

Saturday Night

Rain, mainly after 10pm. Mostly cloudy, with a low around 46. Breezy.

Sunday

Rain. Mostly cloudy, with a high near 55. Breezy.