• Partly sunny 54°
    Ragweed Pollen Current Weather
    • Relative Humidity
      66%
    • Yesterday
      Temp
      55°
    • RealFeel
      53°
  • Today

    Mar 1

    Hi 62°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Moderate
    Day Details >
  • Tomorrow

    Mar 2

    Hi 61°

    A brief shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Moderate
    Day Details >
  • Tuesday

    Mar 3

    Hi 62°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Moderate
    Day Details >
Next

Expect showers tomorrow

3/1 3/2 Now: 9:59am
AM 9-1
  • 9am Mostly sunny 52° 0%
  • 10am Mostly sunny 54° 0%
  • 11am Mostly sunny 56° 0%
  • 12pm Mostly sunny 58° 0%
  • 1pm Mostly sunny 59° 0%
PM 8-1
  • 8pm Mostly clear 53° 0%
  • 9pm Mostly clear 53° 0%
  • 10pm Mostly clear 52° 0%
  • 11pm Clear 52° 0%
  • 12am Clear 51° 0%
  • 1am Mostly clear 50° 0%
AM 2-7
  • 2am Mostly clear 50° 0%
  • 3am Partly cloudy 50° 0%
  • 4am Partly cloudy 49° 0%
  • 5am Partly cloudy 48° 0%
  • 6am Partly cloudy 48° 2%
  • 7am Cloudy 49° 37%
Hourly Forecast >

San Bruno Pollen Levels - March 1

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Feb 28, 2015; 6:18 PM ET
A thunderstorm this evening
San Francisco, CA Weather Forecast

San Bruno Weather Report

Western Storm to Deliver Fraction of Much-Needed Rain, Snow

February 28, 2015; 10:07 PM ET

A slow-moving storm will continue to affect the West this weekend and into the first part of next week with rounds of precipitation for some needy areas as well as trouble for travelers. more >

Allergies Live Feed

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Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Sun. Pollen

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