• Today

    Sep 17

    17°Lo 5°

    Showers around this afternoon

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      17°
    • UV
      3 - Moderate
    • Cloud
      Cover
      83%
  • Thu

    Sep 18

    12°Lo 0°

    Clearing and cool

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      12°
    • UV
      4 - Moderate
    • Cloud
      Cover
      60%
    more
  • Fri

    Sep 19

    14°Lo 6°

    Mostly sunny and pleasant

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      16°
    • UV
      4 - Moderate
    • Cloud
      Cover
      20%
    more
  • Sat

    Sep 20

    19°Lo 14°

    Showers around in the p.m.

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      18°
    • UV
      2 - Low
    • Cloud
      Cover
      76%
    more
  • Sun

    Sep 21

    21°Lo 10°

    Mostly cloudy, showers around

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      21°
    • UV
      3 - Moderate
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°C) 10° 11° 14° 15° 16° 17° 16°
RealFeel® 11° 13° 16° 17° 17° 17° 15°
Humidity 93% 86% 86% 77% 72% 68% 62% 66%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
5%
 
6%
 
7%
 
7%
 
11%
 
19%
 
19%
 
24%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 8 SSW 6 WSW 6 WSW 6 N 8 WSW 10 WSW 11 WSW 13 WSW
UV Index 1 2 2 2 3 3 3 1
Cloud Cover 75% 75% 85% 85% 77% 100% 92% 86%
Dew Point 10° 10° 10° 10°
Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C Middle Grid line 5 C

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 17° 19° 30° (1942) 18°
Low -1° (1950)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:43 AM with 12:27 of sunlight, then sets at 7:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:29 AM with 15:00 of moolight, then sets at 3:29 PM

Top Story

Ottawa Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 17, 2014; 1:10 PM ET

Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet. more >