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. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday 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

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

48°F

9°C

Humidity	96%
Wind Speed	N 0 MPH
Barometer	30.11 in (1019.64 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Last update	19 Mar 06:54 AM PDT

More Information:

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

Extended Forecast for

Sonoma CA

Heat Advisory March 19, 07:07am until March 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory March 19, 07:07am until March 20, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 90 °F
Sunny
Tonight
Low: 58 °F
Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 57 °F
Increasing
Clouds
Saturday
High: 84 °F
Partly Sunny
Saturday Night
Low: 51 °F
Mostly Clear
Sunday
High: 81 °F
Mostly Sunny
Sunday Night
Low: 48 °F
Mostly Clear