• Today

    May 23

    72°Lo 43°

    Sunny and cool

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High

  • Fri

    May 24

    73°Lo 46°

    Mostly sunny

    Very High indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more

  • Sat

    May 25

    73°Lo 48°

    Mostly sunny

    Very High indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    more

  • Sun

    May 26

    74°Lo 50°

    Mostly sunny

    Very High indoor dust & dander levels
    • Precip
      2%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      11%
    more

  • Mon

    May 27

    72°Lo 51°

    A couple of showers possible

    Very High indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      45%
    more
Next Previous
Hi 72° RealFeel® 73° Precipitation 3%

Day

N

E

S

W

  • SW 8 mph
  • Gusts: 13 mph

Sunny and cool

  • Max UV Index: 8 (Very 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 43° RealFeel® 41° Precipitation 1%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 10 mph

Mainly clear and chilly

  • 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

Napa Pollen Levels - May 23

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Moderate

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2012
High 72° 74° 99° (1943) 78°
Low 43° 47° 31° (2010) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:52 AM with 14:28 of sunlight, then sets at 8:20 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:59 PM with 10:29 of moolight, then sets at 5:28 AM

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps