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    • Today

      Sep 25

      86° /52°
      Rain and a thunderstorm
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Sep 26

      65° /44°
      Clouds breaking and breezy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      63° /46°F
      Partly sunny, breezy and cool
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Wed

      Sep 28

      61° /47°
      A morning shower in spots
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      68° /50°
      Mostly sunny and warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    63°Hi RealFeel® 61° Precipitation 25%
    Partly sunny, breezy and cool
    • W 14 mph
    • Gusts: 24 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 4%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    46°Lo RealFeel® 42° Precipitation 25%
    Mostly cloudy
    • NW 7 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 4%
    • 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 63° 70° 89° (1998) 76°
    Low 46° 47° 27° (1991) 61°

    Sunrise/Sunset

    • Sunrise: 6:48 AM
    • Sunset: 6:42 PM
    • Duration: 11:54 hr

    Moonrise/Moonset

    • Moonrise: 3:24 AM
    • Moonset: 5:11 PM
    • Duration: 13:47 hr
    Astronomy

    DeKalb Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 25, 2016; 8:43 AM ET

    Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday. More >

    Tue. Dust & Dander

    Tue. Wind Maps