• Clear 62°
    Dust & Dander Current Weather
    • Relative Humidity
      49%
    • Yesterday
      Temp
      54°
    • RealFeel
      58°
  • Tonight

    Apr 20

    Lo 48°

    Increasing cloudiness

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    Day Details >
  • Tomorrow

    Apr 21

    Hi 71°

    Low clouds, then some sun

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    Day Details >
  • Tuesday

    Apr 22

    Hi 67°

    Low clouds breaking

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    Day Details >
Next

Noticeably cooler tomorrow

4/20 4/21 Now: 9:01pm
PM 9-1
  • 9pm Clear 56° 0%
  • 10pm Clear 54° 0%
  • 11pm Mostly clear 54° 0%
  • 12am Mostly clear 51° 0%
  • 1am Mostly clear 50° 0%
AM 8-1
  • 8am Cloudy 50° 0%
  • 9am Cloudy 54° 0%
  • 10am Cloudy 57° 0%
  • 11am Cloudy 62° 0%
  • 12pm Cloudy 67° 0%
  • 1pm Cloudy 69° 0%
PM 2-7
  • 2pm Partly sunny 70° 0%
  • 3pm Partly sunny 71° 0%
  • 4pm Partly sunny 69° 0%
  • 5pm Partly sunny 66° 0%
  • 6pm Partly sunny 62° 0%
  • 7pm Partly sunny 59° 0%
Hourly Forecast >

San Luis Obispo Pollen Levels - April 20

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

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Allergies Live Feed

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Is it a Cold or the Flu?

Apr 19, 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?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps