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    • Today

      Jul 21

      74° /66°F
      Rain and a t-storm; humid
      • 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
    • Sun

      Jul 22

      78° /59°
      Variable cloudiness
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Jul 23

      80° /59°
      Mostly sunny; beautiful
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Jul 24

      82° /61°
      A p.m. thunderstorm in spots
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Jul 25

      84° /59°
      Mostly sunny; warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    74°Hi RealFeel® 78° Precipitation 66%
    Periods of rain and a thunderstorm; humid
    • Winds from the
    • NE 7 mph
    • Gusts: 12 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 60%
    • Precipitation: 0.46 in
    • Rain: 0.46 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 6 hrs
    • Hours of Rain: 6 hrs

    Night

    66°Lo RealFeel® 67° Precipitation 58%
    Low clouds; a shower this evening, then a couple of showers possible
    • Winds from the
    • NE 7 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 29%
    • Precipitation: 0.07 in
    • Rain: 0.07 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Tustin Pollen Levels Jul 21

    • 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 7/21/2017
    High 74° 80° 96° (1987) 87°
    Low 66° 56° 35° (1992) 60°

    Sunrise/Sunset

    • Sunrise: 6:18 AM
    • Sunset: 9:18 PM
    • Duration: 15:00 hr

    Moonrise/Moonset

    • Moonrise: 4:05 PM
    • Moonset: 2:29 AM
    • Duration: 10:24 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps