• Today

    Aug 23

    82°Lo 70°

    Partly sunny

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Aug 24

    84°Lo 70°

    A few strong thunderstorms

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Thu

    Aug 25

    81°Lo 59°

    Mostly cloudy with a t-storm

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

    Aug 26

    78°Lo 60°

    Periods of sun; less humid

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
  • Sat

    Aug 27

    81°Lo 70°

    Clouds giving way to some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 78° RealFeel® 84° Precipitation 9%

Day

N

E

S

W

  • N 5 mph
  • Gusts: 7 mph

Pleasant and less humid with times of clouds and sun

  • Max UV Index: 6 (High)
  • Thunderstorms: 3%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 60° RealFeel® 59° Precipitation 17%

Night

N

E

S

W

  • E 4 mph
  • Gusts: 7 mph

Cloudy

  • Max UV Index: N/A
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 26

more Historical Weather Data >
  Today Normal Record 8/26/2015
High 78° 82° 97° (1953) 68°
Low 60° 61° 38° (1923) 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:16 AM with 13:21 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:39 AM with 14:45 of moolight, then sets at 3:24 PM

Ottawa Weather Report

Strong thunderstorms to stretch across central US this week

August 23, 2016; 3:00 PM ET

The return of warmer and more humid air will trigger another round of strong thunderstorms across the central United States this week. more >

Fri. Dust & Dander

Fri. Wind Maps