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.

28°F

-2°C

Humidity	99%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Last update	17 Feb 08:35 PM PST

More Information:

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

Extended Forecast for

3 Miles S Clayton CA

Tonight
Low: 34 °F
Rain/Snow
Likely then
Slight Chance
Snow
Wednesday
High: 44 °F
Chance
Rain/Snow
then Chance
Rain
Wednesday Night
Low: 37 °F
Rain
Thursday
High: 43 °F
Rain/Snow
then Chance
Rain/Snow
Thursday Night
Low: 34 °F
Chance
Rain/Snow
then Mostly
Clear
Friday
High: 47 °F
Slight Chance
Rain/Snow
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 51 °F
Chance Rain
Saturday Night
Low: 45 °F
Rain Likely
and Breezy

Detailed Forecast

Tonight

Rain and snow likely before 2am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 34. West wind 9 to 15 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

A chance of rain and snow before 11am, then a chance of rain between 11am and 4pm. Partly sunny, with a high near 44. West southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Wednesday Night

Rain, mainly after 10pm. Low around 37. South wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain and snow, mainly before 10am. High near 43. Southwest wind 9 to 14 mph becoming west northwest 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A chance of rain and snow before 10pm. Partly cloudy, with a low around 34. West southwest wind 6 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday

A slight chance of rain and snow before 1pm, then a slight chance of rain between 1pm and 4pm. Mostly sunny, with a high near 47. Chance of precipitation is 20%.

Friday Night

A 30 percent chance of rain, mainly between 10pm and 4am. Partly cloudy, with a low around 36.

Saturday

A chance of rain, mainly after 10am. Partly sunny, with a high near 51.

Saturday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 45. Breezy.

Sunday

Rain likely. Mostly cloudy, with a high near 54. Breezy.

Sunday Night

Rain. Cloudy, with a low around 50. Breezy.

Monday

Rain. Cloudy, with a high near 56. Breezy.