Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Heat Advisory until March 20, 08:00 PM PDT

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

70°F

21°C

Humidity	23%
Wind Speed	N 14 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	20 Mar 08:15 AM PDT

More Information:

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

Extended Forecast for

3 Miles SSE Clayton CA

Heat Advisory March 20, 10:46am until March 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory March 20, 10:46am until March 20, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 84 °F
Sunny
Tonight
Low: 63 °F
Mostly Clear
Saturday
High: 78 °F
Mostly Sunny
Saturday Night
Low: 56 °F
Mostly Clear
Sunday
High: 76 °F
Sunny
Sunday Night
Low: 51 °F
Mostly Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 55 °F
Mostly Clear