On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Severe weather possible for parts of central Plains, mid-Atlantic to New England

The NWS Storm Prediction Center is forecasting a Slight Risk of severe thunderstorms Tuesday afternoon and evening across parts of the central Plains, from northwestern Kansas to southwestern Nebraska and extreme northeastern Colorado, as well across parts of the mid-Atlantic and eastern New England. Isolated strong to severe storms are possible in areas surrounding the Slight Risk areas.
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Current conditions at

DW9961 Petaluma (D9961)

Lat: 38.27467°NLon: 122.66383°WElev: 43ft.

NA

70°F

21°C

Humidity 63%
Wind Speed NE 4 G 10 MPH
Barometer 29.97 in
Dewpoint 57°F (14°C)
Visibility NA
Last update 04 Aug 4:44 pm PDT
Extended Forecast for

7 Miles SW Saint Helena CA

  • Tonight

    Tonight: Partly cloudy, with a low around 55. West southwest wind 6 to 10 mph.

    Partly Cloudy

    Low: 55 °F

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 81. West southwest wind around 5 mph becoming calm.

    Becoming
    Sunny

    High: 81 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 56. West southwest wind 5 to 9 mph becoming light  in the evening.

    Mostly Clear

    Low: 56 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Calm wind.

    Mostly Sunny

    High: 85 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 11pm.  Partly cloudy, with a low around 56. Southwest wind 6 to 10 mph.

    Slight Chance
    T-storms

    Low: 56 °F

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 78.

    Slight Chance
    T-storms

    High: 78 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 55.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 55 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 56.

    Partly Cloudy

    Low: 56 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. West southwest wind 6 to 10 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 81. West southwest wind around 5 mph becoming calm.
Wednesday Night
Mostly clear, with a low around 56. West southwest wind 5 to 9 mph becoming light in the evening.
Thursday
Mostly sunny, with a high near 85. Calm wind.
Thursday Night
A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 56. Southwest wind 6 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 82.
  Click Map For Forecast
Point Forecast:
7 Miles SW Saint Helena CA
 38.45°N 122.59°W (Elev. 535 ft)
1:26 pm PDT Aug 4, 2015
5pm PDT Aug 4, 2015-6pm PDT Aug 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database