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Personalized Forecasts

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    Next 5 Days
    • Current Weather

      61° F
      Clear
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 64%
      • Yesterday Temp: 60°
      • RealFeel: 57°
    • Early AM

      Sep 20

      58° Lo
      Clear
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    • Today

      Sep 20

      65° Hi
      Periods of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    • Tomorrow

      Sep 21

      65° Hi
      Clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    Next 6 Hours
    • 3AM

      Sep 20

      58°
      Mostly clear
      Precip 0%
    • 4AM

      58°
      Mostly clear
      Precip 0%
    • 5AM

      58°
      Mostly clear
      Precip 0%
    • 6AM

      58°
      Mostly clear
      Precip 0%
    • 7AM

      59°
      Mostly sunny
      Precip 1%
    • 8AM

      60°
      Intermittent clouds
      Precip 7%

    Half Moon Bay Pollen Levels Sep 20

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

     Snow and rain showers will soak drought-ridden Pacific Northwest into the weekend.
    Chilly storms to sweep through northwestern US

    Allergies Live Feed

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps