• Tonight

    May 19

    Lo 59°

    A thunderstorm in spots late

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      650 - High
    more

  • Mon

    May 20

    79°Lo 59°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      650 - High

  • Tue

    May 21

    75°Lo 59°

    Periods of rain and a t-storm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      650 - High
    more

  • Wed

    May 22

    78°Lo 49°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      81%
    more

  • Thu

    May 23

    63°Lo 44°

    Cooler with a passing shower

    Extreme indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      93%
    more
Next Previous
Hi 79° RealFeel® 81° Precipitation 69%

Day

N

E

S

W

  • SE 7 mph
  • Gusts: 13 mph

Mostly cloudy and very warm with a couple of showers and a thunderstorm

  • Max UV Index: 6 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.81 in
  • Rain: 0.81 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs
Lo 59° RealFeel® 56° Precipitation 61%

Night

N

E

S

W

  • SE 5 mph
  • Gusts: 9 mph

Cloudy and mild with a couple of showers and a thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.23 in
  • Rain: 0.23 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs

Tustin Pollen Levels - May 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 20

more Historical Weather Data >
  Today Normal Record 5/20/2012
High 79° 67° 91° (2012) 91°
Low 59° 42° 26° (1955) 62°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:11 AM with 14:55 of sunlight, then sets at 9:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:04 PM with 11:41 of moolight, then sets at 3:45 AM

How Weather Impacts Seasonal Allergy Symptoms

May 18, 2013; 5:00 AM ET If you suffer with seasonal allergies, the weather can relieve or worsen your symptoms. Marja Martinez has the details.

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps