• Tonight

    Sep 2

    Lo 14°

    Clearing

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 3

    26°Lo 12°

    Sunny and comfortable

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Thu

    Sep 4

    27°Lo 17°

    Mostly cloudy and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Sep 5

    29°Lo 11°

    A couple of p.m. t-storms

    Low ragweed pollen levels
    • Precip
      68%
    • Wind
      Speed
      18 k/h
    • Cloud
      Cover
      61%
    more
  • Sat

    Sep 6

    19°Lo 8°

    Times of clouds and sun

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      10 k/h
    • Cloud
      Cover
      50%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Clear
Mostly Clear
Clear
Clear
Clear
Sunny
Sunny
Sunny
Temp (°C) 17° 16° 16° 16° 14° 16° 17° 18°
RealFeel® 15° 14° 14° 13° 12° 14° 15° 18°
Humidity 90% 90% 90% 90% 100% 92% 85% 80%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (km/h) 11 WSW 11 WSW 10 W 10 W 10 W 10 W 10 W 11 W
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 26% 18% 9% 1% 1% 1% 1% 1%
Dew Point 15° 15° 14° 14° 14° 14° 14° 15°
Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2013
High 26° 22° 33° (1999) 21°
Low 12° 11° (1946) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:11 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:25 PM with 9:42 of moolight, then sets at 1:07 AM

Top Story

Ottawa Weather Report

September Thoughts

September 2, 2014; 2:43 PM ET

Welcome to September and meteorological Fall. more >