National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.38033°NLon: 122.82367°WElev: 235.3ft.

NA

59°F

15°C

Humidity 69%
Wind Speed S 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 20 Mar 04:25 AM PDT
Extended Forecast for

3 Miles S Cotati CA

Heat Advisory March 20, 04:38am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 04:38am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. Light west wind.

    Low: 53 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. West northwest wind 5 to 11 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 87. Calm wind becoming west southwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 53. Light west wind.
Saturday
Mostly sunny, with a high near 79. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 47. West northwest wind 5 to 11 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 46.
Monday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Cotati CA
 38.29°N 122.69°W (Elev. 226 ft)
Last Update:
2:22 am PDT Mar 20, 2026
Forecast Valid:
4am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation