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    • Today

      Dec 18

      35° /32°F
      Fog in the morning; cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Dec 19

      37° /21°
      Snow squalls, 1-3"
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 20

      28° /17°
      Cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Dec 21

      28° /25°
      A little snow at times
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Dec 22

      38° /27°
      A little snow, some ice early
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    35°Hi RealFeel® 31° Precipitation 25%
    Patchy fog this morning; otherwise, a thick cloud cover
    • Winds from the
    • WSW 7 mph
    • Gusts: 12 mph
    • Max UV Index: 0 (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

    32°Lo RealFeel® 25° Precipitation 12%
    Rather cloudy; areas of late-night fog
    • Winds from the
    • SW 10 mph
    • Gusts: 16 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

    Tustin Pollen Levels Dec 18

    • 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 12/18/2016
    High 35° 30° 47° (1957) 17°
    Low 32° 17° -18° (1926)

    Sunrise/Sunset

    • Sunrise: 8:12 AM
    • Sunset: 5:05 PM
    • Duration: 8:53 hr

    Moonrise/Moonset

    • Moonrise: 8:14 AM
    • Moonset: 5:47 PM
    • Duration: 9:33 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps