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.

Isolated Severe Thunderstorms Will Continue

Isolated severe thunderstorms will continue from Minnesota to southwestern Kansas and vicinity. Within that swath, the most probable area for greater concentrations of severe weather is from eastern Nebraska across parts of Iowa. A marginal risk for severe thunderstorms also exists over eastern New England.
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Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33ft.

Mostly Cloudy

85°F

29°C

Humidity 24%
Wind Speed W 12 MPH
Barometer 29.81 in (1008.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 28 Jul 6:54 pm PDT
Extended Forecast for

2 Miles E Lake Berryessa CA

  • Tonight

    Tonight: Clear, with a low around 66. North northwest wind 5 to 9 mph.

    Clear

    Low: 66 °F

  • Wednesday

    Wednesday: Sunny and hot, with a high near 105. North wind 5 to 8 mph becoming calm  in the afternoon.

    Hot

    High: 105 °F

  • Wednesday
    Night

    Wednesday Night: Clear, with a low around 65. West wind around 7 mph.

    Clear

    Low: 65 °F

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Light and variable wind.

    Hot

    High: 102 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 66. West southwest wind 7 to 10 mph.

    Partly Cloudy

    Low: 66 °F

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 11am.  Mostly sunny and hot, with a high near 98. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms

    High: 98 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 65.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 65 °F

  • Saturday

    Saturday: Sunny, with a high near 95.

    Sunny

    High: 95 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 64.

    Mostly Clear

    Low: 64 °F

Detailed Forecast

Tonight
Clear, with a low around 66. North northwest wind 5 to 9 mph.
Wednesday
Sunny and hot, with a high near 105. North wind 5 to 8 mph becoming calm in the afternoon.
Wednesday Night
Clear, with a low around 65. West wind around 7 mph.
Thursday
Sunny and hot, with a high near 102. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 66. West southwest wind 7 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 98. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 90.
  Click Map For Forecast
Point Forecast:
2 Miles E Lake Berryessa CA
 38.57°N 122.21°W (Elev. 440 ft)
1:38 pm PDT Jul 28, 2015
7pm PDT Jul 28, 2015-6pm PDT Aug 4, 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