Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

46°F

8°C

Humidity	65%
Wind Speed	SSE 7 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Wind Chill	42°F (6°C)
Last update	27 Jan 01:05 PM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

This Afternoon
High: 54 °F
Increasing
Clouds
Tonight
Low: 49 °F
Chance Rain
Wednesday
High: 54 °F
Decreasing
Clouds
Wednesday Night
Low: 42 °F
Mostly Clear
Thursday
High: 57 °F
Mostly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 58 °F
Partly Sunny
Friday Night
Low: 46 °F
Mostly Cloudy
Saturday
High: 59 °F
Partly Sunny

Detailed Forecast

This Afternoon

Increasing clouds, with a high near 54. Southwest wind around 10 mph.

Tonight

A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 49. South southwest wind 7 to 13 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 54. Northeast wind 5 to 9 mph.

Wednesday Night

Mostly clear, with a low around 42. North northwest wind around 6 mph becoming east northeast after midnight.

Thursday

Mostly sunny, with a high near 57. North northeast wind around 6 mph.

Thursday Night

Partly cloudy, with a low around 46.

Friday

Partly sunny, with a high near 58.

Friday Night

Mostly cloudy, with a low around 46.