• Today

    May 4

    78°Lo 52°

    Not as warm with some sun

    Fair for stargazing
    • Cloud
      Cover
      64%
    • Precip
      56%
    • Hours of Precip
      0.5
  • Thu

    May 5

    67°Lo 49°

    Variably cloudy and cooler

    Poor for stargazing
    • Cloud
      Cover
      78%
    • Precip
      58%
    • Hours of Precip
      2.5
    more
  • Fri

    May 6

    63°Lo 49°

    Variable clouds, a t-storm

    Poor for stargazing
    • Cloud
      Cover
      95%
    • Precip
      45%
    • Hours of Precip
      2
    more
  • Sat

    May 7

    64°Lo 49°

    A thunderstorm in spots

    Very Good for stargazing
    • Cloud
      Cover
      25%
    • Precip
      25%
    • Hours of Precip
      0.5
    more
  • Sun

    May 8

    68°Lo 50°

    An afternoon thunderstorm

    Excellent for stargazing
    • Cloud
      Cover
      25%
    • Precip
      8%
    • Hours of Precip
      0.5
    more
Next Previous
Hi 78° RealFeel® 83° Precipitation 11%

Day

N

E

S

W

  • SW 8 mph
  • Gusts: 14 mph

Not as warm with partial sunshine

  • Max UV Index: 8 (Very 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 52° RealFeel® 51° Precipitation 56%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 12 mph

Increasing clouds with late-night mist

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 78° 81° N/A 74°
Low 52° 52° N/A 53°

Solunar Information for Rialto, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:56 AM with 13:40 of sunlight, then sets at 7:36 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:36 AM with 12:50 of moolight, then sets at 5:26 PM

Fri, May 6
New
Fri, May 13
First
Sat, May 21
Full
Sun, May 29
Last

Rialto Weather Report

Los Angeles: Spotty rain to dampen late-week plans

May 4, 2016; 4:39 AM ET

Unsettled weather will move into Southern California late in the week following a dry start to May. more >

'Frankenfish' Ready for Market

Dec 7, 2012; 7:08 AM ET A new lab-created meat is waiting for FDA approval that is at once very different and just the same as your favorite fish dinner.

Wed. Stargazing