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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Mist

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 48°F (9°C)
Visibility 1.75 mi
Last update 17 Mar 06:35 AM PDT
Extended Forecast for

Angwin CA

Heat Advisory March 17, 06:59am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 06:59am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 61. West wind around 6 mph becoming north after midnight.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. North wind around 6 mph becoming south in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. Southwest wind around 6 mph becoming north northwest after midnight.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87. West northwest wind around 6 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 86. North wind around 6 mph becoming west in the afternoon.
Tonight
Clear, with a low around 61. West wind around 6 mph becoming north after midnight.
Wednesday
Sunny, with a high near 86. North wind around 6 mph becoming south in the afternoon.
Wednesday Night
Clear, with a low around 61. Southwest wind around 6 mph becoming north northwest after midnight.
Thursday
Sunny, with a high near 87. West northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Angwin CA
 38.58°N 122.45°W (Elev. 1759 ft)
Last Update:
1:54 am PDT Mar 17, 2026
Forecast Valid:
6am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
Forecast Discussion
 
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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