• 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
  • Mon

    Jul 25

    87°Lo 64°

    Mostly sunny and humid

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

    Jul 26

    86°Lo 68°

    Sunny

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

    Jul 27

    86°Lo 69°

    Humid with periods of sun

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

    Jul 28

    83°Lo 67°

    A couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 93° RealFeel® 107° Precipitation 40%

Day

N

E

S

W

  • SW 10 mph
  • Gusts: 17 mph

Partial sunshine, hot and humid; a thunderstorm in spots this afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 90%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 70° RealFeel® 72° Precipitation 43%

Night

N

E

S

W

  • NW 5 mph
  • Gusts: 10 mph

Turning out clear and humid with a shower or thunderstorm in spots

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.19 in
  • Rain: 0.19 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Ottawa Pollen Levels - July 24

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

    Low

  • Ragweed Pollen

    Moderate

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Jul 24

more Historical Weather Data >
  Today Normal Record 7/24/2015
High 93° 84° 109° (1901) 83°
Low 70° 64° 50° (2000) 66°

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 24, 2016; 8:33 AM ET

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps