• Today

    Aug 20

    71°Lo 54°

    Low clouds, then sun

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

    Aug 21

    76°Lo 55°

    Partly sunny

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

    Aug 22

    74°Lo 51°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sat

    Aug 23

    76°Lo 52°

    Partly sunny and cool

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      26%
    more
  • Sun

    Aug 24

    78°Lo 53°

    A full day of sunshine

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      9%
    more
Next Previous
Hi 71° RealFeel® 73° Precipitation 2%

Day

N

E

S

W

  • SSW 7 mph
  • Gusts: 13 mph

Low clouds followed by sunshine

  • Max UV Index: 6 (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 54° RealFeel® 52° Precipitation 2%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 10 mph

Mainly clear

  • 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 - August 20

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 71° 87° N/A 78°
Low 54° 52° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:28 of sunlight, then sets at 7:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:14 AM with 14:30 of moolight, then sets at 4:44 PM

Top Story

Napa Weather Report

Firefighters Race to Contain Blaze Near Yosemite

August 20, 2014; 11:04 AM ET

All evacuation orders were lifted as containment increased early Wednesday. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps