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    • Early AM

      Jan 24

      19° Lo
      A snow shower or heavier squall
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Today

      Jan 24

      33° /10°
      Snow showers this morning
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Jan 25

      34° /18°F
      Some sun, then clouds; chilly
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Thu

      Jan 26

      34° /14°
      Clouds and sun, a snow shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Jan 27

      35° /15°
      Partly sunny and chilly
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    34°Hi RealFeel® 36° Precipitation 4%
    Chilly with some sun, then increasing clouds
    • WSW 5 mph
    • Gusts: 7 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    18°Lo RealFeel® 20° Precipitation 12%
    Rather cloudy and seasonably cold
    • WSW 4 mph
    • Gusts: 6 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

    Portola Pollen Levels Jan 25

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 1/25/2016
    High 34° 42° N/A 39°
    Low 18° 14° N/A 19°

    Sunrise/Sunset

    • Sunrise: 7:16 AM
    • Sunset: 5:13 PM
    • Duration: 9:57 hr

    Moonrise/Moonset

    • Moonrise: 5:21 AM
    • Moonset: 3:27 PM
    • Duration: 10:06 hr
    Astronomy

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps