• Today

    Apr 21

    66°Lo 45°

    A stray afternoon t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Wed

    Apr 22

    61°Lo 43°

    A couple of p.m. t-storms

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Thu

    Apr 23

    62°Lo 39°

    A couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Fri

    Apr 24

    54°Lo 35°

    Variable clouds with a shower

    Low ragweed pollen levels
    • Precip
      56%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      88%
    more
  • Sat

    Apr 25

    63°Lo 39°

    Warmer with periods of sun

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 66° RealFeel® 66° Precipitation 48%

Day

N

E

S

W

  • WSW 14 mph
  • Gusts: 28 mph

Some sun, then clouds; breezy this morning, then widely separated thunderstorms this afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.19 in
  • Rain: 0.19 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 45° RealFeel® 46° Precipitation 40%

Night

N

E

S

W

  • ENE 2 mph
  • Gusts: 5 mph

A thunderstorm in spots early this evening; otherwise, partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Portola Pollen Levels - April 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 66° 56° N/A 64°
Low 45° 25° N/A 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:16 AM with 13:30 of sunlight, then sets at 7:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:38 AM with 14:34 of moolight, then sets at 11:12 PM

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps