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    • Today

      Sep 25

      72° /53°
      Mostly sunny and delightful
      • Excellent
      • for an outdoor bbq
      • Precip: 8%
      • Hi RealFeel: 77°
      • Wind Speed: 4 mph
      More
    • Mon

      Sep 26

      73° /58°
      Cloudy
      • Very Good
      • for an outdoor bbq
      • Precip: 25%
      • Hi RealFeel: 71°
      • Wind Speed: 9 mph
      More
    • Tue

      Sep 27

      74° /49°F
      Mostly sunny
      • Excellent
      • for an outdoor bbq
      • Precip: 25%
      • Hi RealFeel: 76°
      • Wind Speed: 6 mph
    • Wed

      Sep 28

      72° /55°
      Chance of a little p.m. rain
      • Very Good
      • for an outdoor bbq
      • Precip: 30%
      • Hi RealFeel: 72°
      • Wind Speed: 5 mph
      More
    • Thu

      Sep 29

      71° /56°
      Mostly cloudy, a little rain
      • Very Good
      • for an outdoor bbq
      • Precip: 55%
      • Hi RealFeel: 70°
      • Wind Speed: 8 mph
      More

    Day

    74°Hi RealFeel® 76° Precipitation 25%
    Mostly sunny
    • W 6 mph
    • Gusts: 8 mph
    • Max UV Index: 5 (Moderate)
    • 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

    49°Lo RealFeel® 50° Precipitation 15%
    Clear
    • W 2 mph
    • Gusts: 5 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 9/27/2015
    High 74° 76° N/A 72°
    Low 49° 54° N/A 55°

    Sunrise/Sunset

    • Sunrise: 7:03 AM
    • Sunset: 6:58 PM
    • Duration: 11:55 hr

    Moonrise/Moonset

    • Moonrise: 3:42 AM
    • Moonset: 5:22 PM
    • Duration: 13:40 hr
    Astronomy

    Rosemont Weather Report

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 25, 2016; 10:29 AM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend. More >

    Tue. Outdoor Entertaining

    Tue. Wind Maps

    Tue. UV Index