• Tonight

    Apr 19

    Lo 46°

    Partly cloudy and cool

    Hair Frizz Weather
    • Wind
      Gust
      18 mph
    • Precip
      1%
    • Hours of Precip
      0
  • Mon

    Apr 20

    68°Lo 46°

    Partly sunny

    Advisory for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Tue

    Apr 21

    65°Lo 44°

    Some sun; breezy in the p.m.

    Advisory for hair frizz
    • Wind
      Gust
      20 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Wed

    Apr 22

    70°Lo 41°

    A shower possible

    Advisory for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      30%
    • Hours of Precip
      0
    more
  • Thu

    Apr 23

    69°Lo 42°

    Clouds and sun with a shower

    Advisory for hair frizz
    • Wind
      Gust
      20 mph
    • Precip
      57%
    • Hours of Precip
      1
    more
Next Previous
Hi 67° RealFeel® 68° Precipitation 1%

Day

N

E

S

W

  • SSW 8 mph
  • Gusts: 18 mph

Clouds giving way to some sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 46° RealFeel® 43° Precipitation 3%

Night

N

E

S

W

  • WSW 7 mph
  • Gusts: 13 mph

Partly cloudy and seasonably cool

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 19

more Historical Weather Data >
  Today Normal Record 4/19/2014
High 67° 72° 91° (2009) 72°
Low 46° 46° 30° (1917) 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:21 of sunlight, then sets at 7:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:15 AM with 13:56 of moolight, then sets at 9:11 PM

Napa Weather Report

San Francisco: Pleasant Conditions to Continue This Week

April 19, 2015; 4:23 PM ET

The Bay Area will see pleasant conditions hold this week with plenty of sunshine and comfortable temperatures. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Sun. Hair Frizz

Sun. Wind Maps

Sun. UV Index