Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125ft.

Fair

56°F

13°C

Humidity 90%
Wind Speed calm
Barometer 29.89 in (1011.3 mb)
Dewpoint 53°F (12°C)
Visibility 9.00 mi
Last update 18 Jul 3:53 am PDT
Extended Forecast for

5 Miles SSW Saint Helena CA

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    Sunny

    High: 79 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 56. West wind 5 to 9 mph becoming calm  in the evening.

    Increasing
    Clouds

    Low: 56 °F

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    Sunny

    High: 77 °F

  • Friday
    Night

    Friday Night: Increasing clouds, with a low around 56. West wind 5 to 9 mph.

    Increasing
    Clouds

    Low: 56 °F

  • Saturday

    Saturday: Sunny, with a high near 79. Light west northwest wind becoming west southwest 5 to 10 mph in the morning.

    Sunny

    High: 79 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

  • Sunday

    Sunday: Sunny, with a high near 81.

    Sunny

    High: 81 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 57.

    Mostly Clear

    Low: 57 °F

  • Monday

    Monday: Sunny, with a high near 83.

    Sunny

    High: 83 °F

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Increasing clouds, with a low around 56. West wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 56. West wind 5 to 9 mph.
Saturday
Sunny, with a high near 79. Light west northwest wind becoming west southwest 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
5 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
1:33 am PDT Jul 18, 2019
4am PDT Jul 18, 2019-6pm PDT Jul 24, 2019
 
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