• Today

    May 4

    64°Lo 44°

    Low clouds, then sun

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

    May 5

    69°Lo 44°

    Clouds breaking for sun

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

    May 6

    71°Lo 47°

    Sunny and pleasant

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

    May 7

    71°Lo 46°

    Pleasant with clouds and sun

    Low ragweed pollen levels
    • Precip
      9%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      46%
  • Fri

    May 8

    71°Lo 46°

    Partly sunny and cool

    Ragweed Pollen Weather
    • Precip
      3%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 71° RealFeel® 74° Precipitation 9%

Day

N

E

S

W

  • WNW 9 mph
  • Gusts: 15 mph

Pleasant with times of clouds and sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 2%
  • 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® 44° Precipitation 50%

Night

N

E

S

W

  • SW 6 mph
  • Gusts: 12 mph

A shower in spots in the evening; otherwise, partly cloudy and cool

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - May 7

more Historical Weather Data >
  Today Normal Record 5/7/2014
High 71° 75° 98° (1987) 73°
Low 46° 48° 34° (1930) 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 14:01 of sunlight, then sets at 8:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:36 PM with 10:22 of moolight, then sets at 9:58 AM

Napa Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 4, 2015; 1:42 PM ET

A pattern of seasonable temperatures will continue through the first part of the new week, with low clouds in the morning and sunny conditions through the afternoon. more >

Thu. Dust & Dander

Thu. Wind Maps