• Early AM

    Apr 17

    Lo 51°

    Clear

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Today

    Apr 17

    70°Lo 49°

    Low clouds break for some sun

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    Apr 18

    68°Lo 48°

    Partly sunny

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    Apr 19

    68°Lo 48°

    Mostly sunny

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      20%
    more
  • Sun

    Apr 20

    72°Lo 49°

    Mostly sunny and beautiful

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      13%
    more
Next Previous
Hi 68° RealFeel® 71° Precipitation 2%

Day

N

E

S

W

  • NW 8 mph
  • Gusts: 14 mph

Partly sunny

  • 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 48° RealFeel® 46° Precipitation 1%

Night

N

E

S

W

  • W 4 mph
  • Gusts: 10 mph

Partly cloudy

  • 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

Cupertino Pollen Levels - April 18

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 68° 70° N/A 77°
Low 48° 45° N/A 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

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

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:34 PM with 10:21 of moolight, then sets at 9:55 AM

Top Story

Cupertino Weather Report

San Francisco: No Rain in Sight, Morning Clouds to Break for Afternoon Sunshine

April 16, 2014; 6:56 PM ET

For the remainder of the week and into the weekend, morning clouds will give way to mostly sunny skies. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps