• Tonight

    May 27

    Lo 51°

    Mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Thu

    May 28

    73°Lo 51°

    Low clouds, then some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    May 29

    74°Lo 51°

    Turning sunny; pleasant

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    May 30

    75°Lo 52°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      50%
  • Sun

    May 31

    72°Lo 53°

    Low clouds, then some sun

    Ragweed Pollen Weather
    • Precip
      12%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      60%
    more
Next Previous
Hi 75° RealFeel® 76° Precipitation 1%

Day

N

E

S

W

  • SW 12 mph
  • Gusts: 17 mph

Nice with areas of low clouds early; otherwise, mostly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 52° RealFeel® 48° Precipitation 2%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 13 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 30

more Historical Weather Data >
  Today Normal Record 5/30/2014
High 75° 78° 102° (2001) 66°
Low 52° 52° 39° (1927) 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:38 of sunlight, then sets at 8:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:40 PM with 10:59 of moolight, then sets at 4:39 AM

Napa Weather Report

San Francisco: Dry, Pleasant Weather to Hold Through Weekend

May 27, 2015; 9:10 PM ET

A dry and quiet pattern will be in place across the Bay area over the next several days before rain returns early in the new week. more >

Sat. Dust & Dander

Sat. Wind Maps