• Clear 54°
    Dust & Dander Current Weather
    • Relative Humidity
      76%
    • Yesterday
      Temp
      52°
    • RealFeel
      57°
  • Today

    May 19

    Hi 79°

    Sunny; breezy this afternoon

    Very High indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
    Day Details >
  • Tomorrow

    May 20

    Hi 81°

    Mostly sunny and beautiful

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

    May 21

    Hi 70°

    Sunny, breezy and not as warm

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

Noticeably cooler Tuesday

5/19 5/20 Now: 5:58am
AM 5-9
  • 5am Clear 51° 0%
  • 6am Mostly Sunny 53° 0%
  • 7am Mostly Sunny 56° 0%
  • 8am Sunny 57° 0%
  • 9am Sunny 61° 0%
PM 4-9
  • 4pm Mostly Sunny 79° 0%
  • 5pm Mostly Sunny 77° 0%
  • 6pm Sunny 74° 0%
  • 7pm Sunny 70° 0%
  • 8pm Mostly Sunny 65° 0%
  • 9pm Mostly Clear 63° 0%
PM 10-3
  • 10pm Mostly Clear 60° 0%
  • 11pm Mostly Clear 58° 0%
  • 12am Mostly Clear 57° 0%
  • 1am Mostly Clear 56° 0%
  • 2am Mostly Clear 55° 0%
  • 3am Mostly Clear 54° 0%
Hourly Forecast >

Menlo Park Pollen Levels - May 19

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

    Pollen

    Moderate

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

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Allergies Live Feed

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How Weather Impacts Seasonal Allergy Symptoms

May 18, 2013; 5:00 AM ET If you suffer with seasonal allergies, the weather can relieve or worsen your symptoms. Marja Martinez has the details.

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps