• Today

    Sep 2

    89°Lo 59°

    Pleasantly cool with some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Thu

    Sep 3

    83°Lo 56°

    Low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Sep 4

    79°Lo 54°

    Low clouds, then sun and cool

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Sep 5

    84°Lo 55°

    Sunshine and pleasantly cool

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Sep 6

    92°Lo 60°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 79° RealFeel® 83° Precipitation 5%

Day

N

E

S

W

  • SSW 8 mph
  • Gusts: 16 mph

Low clouds giving way to sunshine and cool

  • 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 54° RealFeel® 55° Precipitation 6%

Night

N

E

S

W

  • S 4 mph
  • Gusts: 12 mph

Clear

  • 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

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 79° N/A N/A 89°
Low 54° N/A N/A 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:25 AM with 12:47 of sunlight, then sets at 7:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:46 PM with 14:07 of moolight, then sets at 1:53 PM

Rialto Weather Report

Los Angeles: September to Start With Cooler Conditions

September 2, 2015; 2:13 PM ET

The first few days of September will feature cooler conditions across much of the Los Angeles Basin. more >

Fri. Dust & Dander

Fri. Wind Maps