• Today

    Sep 18

    13°Lo -1°

    Turning sunny and cool

    Beneficial weather for arthritis pain
    • Rain
      0 mm
    • Hours of Precip
      0
    • UV
      4 - Moderate
  • Fri

    Sep 19

    14°Lo 5°

    Sunshine; nice in the p.m.

    Beneficial weather for arthritis pain
    • Rain
      0 mm
    • Hours of Precip
      0
    • UV
      4 - Moderate
    more
  • Sat

    Sep 20

    20°Lo 16°

    A couple of afternoon showers

    At Risk weather for arthritis pain
    • Rain
      5 mm
    • Hours of Precip
      3
    • UV
      4 - Moderate
    more
  • Sun

    Sep 21

    20°Lo 7°

    Mostly cloudy, showers around

    At Risk weather for arthritis pain
    • Rain
      5 mm
    • Hours of Precip
      2
    • UV
      3 - Moderate
    more
  • Mon

    Sep 22

    13°Lo 5°

    Partly sunny and cooler

    At Risk weather for arthritis pain
    • Rain
      0 mm
    • Hours of Precip
      0
    • UV
      3 - Moderate
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
Mostly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°C) 10°
RealFeel®
Humidity 93% 86% 86% 93% 86% 79% 66% 58%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
49%
 
34%
 
34%
 
22%
 
16%
 
16%
 
10%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (km/h) 14 NW 18 NNW 13 NNW 14 NW 16 NNW 13 N 14 NNE 14 NNE
UV Index 0 0 0 0 0 1 2 3
Cloud Cover 90% 100% 76% 35% 37% 37% 40% 48%
Dew Point
Middle Grid line 15 C Middle Grid line 10 C Middle Grid line 5 C Middle Grid line 0 C

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 13° 19° 31° (1942) 22°
Low -1° (1943)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:45 AM with 12:24 of sunlight, then sets at 7:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:24 AM with 14:44 of moolight, then sets at 4:08 PM

Top Story

Ottawa Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 18, 2014; 8:05 AM ET

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