• Tonight

    Sep 23

    Lo 59°

    Patchy clouds

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Wed

    Sep 24

    77°Lo 60°

    Some sun, then clouds; cool

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Thu

    Sep 25

    73°Lo 53°

    A couple of showers

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Fri

    Sep 26

    71°Lo 51°

    Partly sunny and cool

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      26%
    more
  • Sat

    Sep 27

    73°Lo 50°

    Cool with clouds and sun

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 80° RealFeel® 79° Precipitation 2%

Day

N

E

S

W

  • SW 9 mph
  • Gusts: 22 mph

Abundant sunshine and pleasant

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 59° RealFeel® 57° Precipitation 10%

Night

N

E

S

W

  • W 7 mph
  • Gusts: 19 mph

Patchy clouds

  • 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

Napa Pollen Levels - September 23

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Sep 23

more Historical Weather Data >
  Today Normal Record 9/23/2013
High 80° 84° N/A 78°
Low 59° 49° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:57 AM with 12:08 of sunlight, then sets at 7:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:27 AM with 12:19 of moolight, then sets at 6:46 PM

Top Story

Napa Weather Report

Dry, Sunny Weather Continues for Much of the Week in San Francisco

September 23, 2014; 8:19 AM ET

Sunshine will continue for much of the region this week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps