• Early AM

    Jul 24

    Lo 77°

    A severe thunderstorm

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 24

    93°Lo 70°

    A thunderstorm around

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Jul 25

    87°Lo 64°

    Partly sunny and humid

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
  • Tue

    Jul 26

    87°Lo 66°

    Mostly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Jul 27

    87°Lo 70°

    A thunderstorm possible

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 87° RealFeel® 94° Precipitation 18%

Day

N

E

S

W

  • NNW 6 mph
  • Gusts: 8 mph

Partly sunny and humid

  • Max UV Index: 7 (High)
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 64° RealFeel® 66° Precipitation 6%

Night

N

E

S

W

  • NNW 2 mph
  • Gusts: 6 mph

Clear and humid

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Ottawa Pollen Levels - July 25

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Moderate

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Jul 25

more Historical Weather Data >
  Today Normal Record 7/25/2015
High 87° 84° 107° (1940) 89°
Low 64° 64° 50° (1920) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:36 of sunlight, then sets at 8:20 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:15 PM with 12:44 of moolight, then sets at 11:59 AM

Ottawa Weather Report

By the numbers: Recapping the week's stifling central US heat

July 23, 2016; 10:33 PM ET

Stifling heat has been baking the central United States but will finally ease across northern areas this weekend. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps