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    • Today

      Oct 21

      86° /59°
      Humid with clouds and sun
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • High
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Sun

      Oct 22

      73° /49°F
      Not as warm
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Mon

      Oct 23

      80° /55°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Oct 24

      73° /47°
      Sunny and pleasant
      • High
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Wed

      Oct 25

      77° /55°
      Sunny and pleasant
      • High
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More

    Day

    73°Hi RealFeel® 73° Precipitation 15%
    Not as warm with clouds giving way to sun; less humid in the afternoon
    • Winds from the
    • N 10 mph
    • Gusts: 16 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 5%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    49°Lo RealFeel® 49° Precipitation 5%
    Clear to partly cloudy
    • Winds from the
    • NNW 5 mph
    • Gusts: 9 mph
    • 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

    Sunnyvale Pollen Levels Oct 22

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

      Low

    • Ragweed Pollen

      Moderate

    • Mold

      Low

    • Grass Pollen

      Moderate

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/22/2016
    High 73° 76° N/A 77°
    Low 49° 54° N/A 43°

    Sunrise/Sunset

    • Sunrise: 7:36 AM
    • Sunset: 6:45 PM
    • Duration: 11:09 hr

    Moonrise/Moonset

    • Moonrise: 10:05 AM
    • Moonset: 8:59 PM
    • Duration: 10:54 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps