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

2 Miles S Clayton CA

Overnight
Low: 37 °F
Patchy Frost
Wednesday
High: 50 °F
Chance Rain
Wednesday Night
Low: 39 °F
Chance Rain
then Rain
Thursday
High: 48 °F
Rain then
Chance Rain
Thursday Night
Low: 34 °F
Slight Chance
Rain then
Patchy Frost
Friday
High: 50 °F
Areas Frost
then Mostly
Sunny
Friday Night
Low: 38 °F
Mostly Cloudy
Saturday
High: 56 °F
Chance Rain
Saturday Night
Low: 47 °F
Rain

Detailed Forecast

Overnight

Patchy frost after 5am. Otherwise, partly cloudy, with a low around 37. West southwest wind 5 to 10 mph, with gusts as high as 23 mph.

Wednesday

A chance of rain between 7am and 4pm. Patchy frost before 7am. Otherwise, partly sunny, with a high near 50. 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. Low around 39. Southwest wind 7 to 12 mph becoming south southeast 13 to 18 mph in the evening. Winds could gust as high as 24 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 48. West wind 11 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

A 20 percent chance of rain before 10pm. Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. West wind 8 to 14 mph, with gusts as high as 26 mph.

Friday

Areas of frost before 8am. Otherwise, mostly sunny, with a high near 50.

Friday Night

Mostly cloudy, with a low around 38.

Saturday

A chance of rain, mainly after 4pm. Partly sunny, with a high near 56.

Saturday Night

Rain, mainly after 10pm. Mostly cloudy, with a low around 47.

Sunday

Rain. Mostly cloudy, with a high near 60.

Sunday Night

Rain. Cloudy, with a low around 53.