• Tonight

    Jul 1

    Lo 55°

    Partly cloudy and cool

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
  • Sat

    Jul 2

    75°Lo 56°

    Mostly sunny and nice

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

    Jul 3

    70°Lo 60°

    Mainly cloudy

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

    Jul 4

    77°Lo 61°

    Mostly sunny and warmer

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

    Jul 5

    83°Lo 65°

    Partly sunny with a t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 75° RealFeel® 78° Precipitation 2%

Day

N

E

S

W

  • NNE 9 mph
  • Gusts: 21 mph

After a cloudy start, sunshine returns

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 55° RealFeel® 56° Precipitation 2%

Night

N

E

S

W

  • E 2 mph
  • Gusts: 10 mph

Partly cloudy and cool

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 1

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

    Low

  • Ragweed Pollen

    Moderate

  • Mold

    Low

  • Grass Pollen

    Moderate

Temperature History - Jul 1

more Historical Weather Data >
  Today Normal Record 7/1/2015
High 75° 84° 103° (1931) 72°
Low 55° 64° 45° (1943) 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:26 AM with 15:06 of sunlight, then sets at 8:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:09 AM with 14:27 of moolight, then sets at 5:36 PM

Ottawa Weather Report

Dry weather to dominate July Fourth weekend from Chicago to NYC, Boston

July 1, 2016; 7:02 PM ET

While downpours will come calling at the start and finish of the July Fourth weekend in part of the northeastern United States, the vast majority of the time will be dry. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps