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    • Tonight

      Sep 30

      62° Lo F
      Clear
      • Driving
        • Driving
        • Fuel Economy
      • Driving
      • Weather
      • Precip: 4%
      • Hours of Precip: 0
      • Rain: 0 in
    • Sat

      Oct 1

      88° /56°
      Sunny
      • Excellent
      • for driving
      • Precip: 5%
      • Hours of Precip: 0
      • Rain: 0 in
      More
    • Sun

      Oct 2

      80° /53°
      Sunny, breezy and not as warm
      • Excellent
      • for driving
      • Precip: 4%
      • Hours of Precip: 0
      • Rain: 0 in
      More
    • Mon

      Oct 3

      77° /49°
      Cool with clouds breaking
      • Excellent
      • for driving
      • Precip: 2%
      • Hours of Precip: 0
      • Rain: 0 in
      More
    • Tue

      Oct 4

      80° /52°
      Mostly sunny and nice
      • Excellent
      • for driving
      • Precip: 1%
      • Hours of Precip: 0
      • Rain: 0 in
      More

    Day

    91°Hi RealFeel® 95° Precipitation 4%
    Sunny
    • SW 7 mph
    • Gusts: 20 mph
    • Max UV Index: 6 (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

    Night

    62°Lo RealFeel® 62° Precipitation 5%
    Clear
    • SSE 5 mph
    • Gusts: 16 mph
    • 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

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 91° 84° 108° (1980) 95°
    Low 62° 60° 44° (1955) 64°

    Sunrise/Sunset

    • Sunrise: 6:45 AM
    • Sunset: 6:35 PM
    • Duration: 11:50 hr

    Moonrise/Moonset

    • Moonrise: 6:23 AM
    • Moonset: 6:41 PM
    • Duration: 12:18 hr
    Astronomy

    Rancho Cucamonga Weather Report

    Cooler air, showers to aid in wildfire efforts across California this weekend

    September 30, 2016; 11:04 PM ET

    Improving weather over the next several days will aid officials in battling wildfires across California. More >

    Fri. Travel Weather

    48 Hour Precipitation Forecast

    Fri. Driving Weather