• Tonight

    Apr 18

    Lo 55°

    Increasing clouds

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
  • Sat

    Apr 19

    70°Lo 56°

    Low clouds, then sun

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sun

    Apr 20

    75°Lo 59°

    Low clouds, then sunshine

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Mon

    Apr 21

    75°Lo 58°

    Low clouds break for some sun

    Low indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      64%
    more
  • Tue

    Apr 22

    69°Lo 56°

    Low clouds break for some sun

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 69° RealFeel® 73° Precipitation 25%

Day

N

E

S

W

  • SSW 6 mph
  • Gusts: 12 mph

Low clouds followed by some sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 55° RealFeel® 54° Precipitation 4%

Night

N

E

S

W

  • SSW 3 mph
  • Gusts: 8 mph

Partly cloudy this evening followed by late-night low clouds

  • 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

Fountain Valley Pollen Levels - April 18

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 69° N/A N/A 77°
Low 55° N/A N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:07 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:09 PM with 10:37 of moolight, then sets at 9:46 AM

Top Story

Fountain Valley Weather Report

Los Angeles: Warmup to Remain into Next Week

April 18, 2014; 2:42 PM ET

A warmup is in store for Los Angeles that will remain into the weekend and early next week. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps