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

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. 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 07:20 AM PST

More Information:

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

Extended Forecast for

3 Miles S Clayton CA

Today
High: 42 °F
Chance
Rain/Snow
Tonight
Low: 36 °F
Chance Rain
then Rain
Thursday
High: 42 °F
Rain then
Chance
Rain/Snow and
Breezy
Thursday Night
Low: 33 °F
Slight Chance
Rain/Snow
then Frost
Friday
High: 45 °F
Mostly Sunny
Friday Night
Low: 36 °F
Mostly Cloudy
Saturday
High: 50 °F
Chance Rain
Saturday Night
Low: 45 °F
Rain
Sunday
High: 55 °F
Rain and
Breezy

Detailed Forecast

Today

A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm. Partly sunny, with a high near 42. West wind 6 to 10 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Tonight

Rain, mainly after 1am. Low around 36. Southwest wind 7 to 16 mph becoming south southeast 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 before 4pm, then a slight chance of rain and snow. High near 42. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A slight chance of rain and snow before 10pm. Widespread frost between 4am and 5am. Otherwise, mostly clear, with a low around 33. West wind 9 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

Friday

Mostly sunny, with a high near 45. Southeast wind around 7 mph becoming east northeast in the afternoon.

Friday Night

Mostly cloudy, with a low around 36.

Saturday

A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 50.

Saturday Night

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

Sunday

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

Sunday Night

Rain. Cloudy, with a low around 52. Breezy.