, °F

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    • Today

      Sep 25

      84° /54°F
      A heavy afternoon t-storm
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 90°
      • UV: 4 - Moderate
      • Cloud Cover: 62%
    • Mon

      Sep 26

      67° /44°
      Mostly sunny and cooler
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 66°
      • UV: 4 - Moderate
      • Cloud Cover: 15%
      More
    • Tue

      Sep 27

      66° /46°
      Partly sunny, breezy and cool
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 65°
      • UV: 4 - Moderate
      • Cloud Cover: 31%
      More
    • Wed

      Sep 28

      64° /49°
      Clouds and sun with a shower
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 65°
      • UV: 4 - Moderate
      • Cloud Cover: 68%
      More
    • Thu

      Sep 29

      71° /49°
      Mostly sunny and beautiful
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Cloud Cover: 11%
      More
    Sunday
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    Forecast Partly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy T-storms
    Temp (°F) 78° 81° 83° 84° 83° 82° 80° 73°
    RealFeel® 85° 88° 89° 90° 86° 83° 80° 71°
    Wind (mph) 9 SSE 10 SSE 10 SSE 10 S 12 SSW 12 SW 10 SW 9 WSW
    precip
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    Rain
    7%
    7%
    10%
    15%
    15%
    19%
    47%
    51%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    UV Index 3 4 4 4 3 2 1 0
    Cloud Cover 40% 51% 57% 62% 68% 73% 76% 79%
    Humidity 79% 72% 65% 62% 58% 60% 64% 88%
    Dew Point 71° 71° 71° 70° 67° 67° 66° 69°
    Temp °F
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    85° 80° 75° 70°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 84° 73° 92° (1908) 83°
    Low 54° 50° 29° (1942) 55°

    Sunrise/Sunset

    • Sunrise: 6:47 AM
    • Sunset: 6:46 PM
    • Duration: 11:59 hr

    Moonrise/Moonset

    • Moonrise: 1:24 AM
    • Moonset: 3:55 PM
    • Duration: 14:31 hr
    Astronomy

    Ottawa 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 >

    Sun. Migraine Headache

    Sun. UV Index