Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Heat Advisory until March 20, 08:00 PM PDT

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

63°F

17°C

Humidity	81%
Wind Speed	WSW 4 MPH
Barometer	NA
Dewpoint	57°F (14°C)
Visibility	NA
Last update	20 Mar 03:10 AM PDT

More Information:

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

Extended Forecast for

Cupertino CA

Heat Advisory March 20, 03:55am until March 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory March 20, 03:55am until March 20, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Overnight
Low: 60 °F
Clear
Friday
High: 92 °F
Sunny
Friday Night
Low: 56 °F
Mostly Clear
Saturday
High: 80 °F
Mostly Sunny
Saturday Night
Low: 50 °F
Mostly Clear
Sunday
High: 79 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear
Monday
High: 78 °F
Sunny