• Today

    Jul 31

    100°Lo 70°

    Mostly sunny and hot

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      7 mph
    • T-storms
      0%
  • Fri

    Aug 1

    98°Lo 70°

    Hot with plenty of sun

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      7 mph
    • T-storms
      3%
    more
  • Sat

    Aug 2

    97°Lo 73°

    Hot with clouds and sun

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      6 mph
    • T-storms
      3%
    more
  • Sun

    Aug 3

    93°Lo 70°

    Partly sunny

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      6 mph
    • T-storms
      10%
    more
  • Mon

    Aug 4

    93°Lo 68°

    Mostly sunny

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      6 mph
    • T-storms
      7%
    more
Next Previous
Hi 100° RealFeel® 100° Precipitation 1%

Day

N

E

S

W

  • WSW 7 mph
  • Gusts: 15 mph

Mostly sunny and hot

  • Max UV Index: 9 (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 70° RealFeel® 68° Precipitation 1%

Night

N

E

S

W

  • N 3 mph
  • Gusts: 9 mph

Mainly 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 - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 100° 93° 110° (1972) 86°
Low 70° 64° 55° (1981) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:01 AM with 13:51 of sunlight, then sets at 7:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:18 AM with 12:04 of moolight, then sets at 10:22 PM

Top Story

Ontario Weather Report

Los Angeles: Boy Dies in Hot Car Amid High Temperatures

July 31, 2014; 9:45 AM ET

A three-year-old boy died near Los Angeles Wednesday afternoon after becoming trapped in a car outside of house, according to the Associated Press, as high heat gripped the area. more >

Travel Weather Forecast

Jul 31, 2014; 1:25 PM ET United States travel weather forecast

Weather Related Flight Delays

Thu. Travel Weather

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