, °F

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    • Today

      Sep 25

      84° /53°
      A heavy afternoon t-storm
      • At Risk
      • weather for asthma
      • Hi RealFeel: 90°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Mon

      Sep 26

      67° /45°F
      Mostly sunny and cooler
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 66°
      • UV: 4 - Moderate
      • Air Qual.: Good
    • Tue

      Sep 27

      66° /47°
      Partly sunny, breezy and cool
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 65°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Wed

      Sep 28

      64° /49°
      Times of clouds and sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 63°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Thu

      Sep 29

      71° /49°
      Mostly sunny and pleasant
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    Monday
    1pm
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    7pm
    8pm
    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Clear Clear
    Temp (°F) 65° 66° 67° 66° 65° 63° 60° 57°
    RealFeel® 66° 66° 66° 64° 62° 59° 57° 55°
    Wind (mph) 16 W 16 W 16 W 16 W 14 W 12 W 8 W 6 W
    precip
    1pm
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    8pm
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
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    Ice
    0%
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    0%
    0%
    0%
    SKY
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    7pm
    8pm
    UV Index 5 4 3 2 1 0 0 0
    Cloud Cover 15% 21% 25% 25% 18% 11% 11% 2%
    Humidity 47% 44% 43% 43% 46% 52% 56% 61%
    Dew Point 45° 43° 43° 43° 44° 45° 44° 44°
    Temp °F
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    7pm
    8pm
    70° 65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 67° 73° 91° (1999) 81°
    Low 45° 49° 25° (1928) 56°

    Sunrise/Sunset

    • Sunrise: 6:48 AM
    • Sunset: 6:44 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 2:24 AM
    • Moonset: 4:35 PM
    • Duration: 14:11 hr
    Astronomy

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 25, 2016; 4:43 AM ET

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

    Mon. Air Quality

    Mon. Asthma Risk

    Mon. UV Index