• Today

    Dec 21

    -6°Lo -12°

    Low clouds and freezing fog

    Extreme indoor dust & dander levels
    • Precip
      18%
    • Wind
      Speed
      6 k/h
    • Cloud
      Cover
      72%
    more
  • Mon

    Dec 22

    -5°Lo -6°

    Some sun, then clouds

    Extreme indoor dust & dander levels
    • Precip
      6%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      51%
  • Tue

    Dec 23

    1°Lo -1°

    A bit of ice in the afternoon

    High indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      95%
    more
  • Wed

    Dec 24

    5°Lo 2°

    Windy with periods of rain

    Moderate indoor dust & dander levels
    • Precip
      74%
    • Wind
      Speed
      30 k/h
    • Cloud
      Cover
      95%
    more
  • Thu

    Dec 25

    5°Lo -2°

    Windy; a morning shower

    Low indoor dust & dander levels
    • Precip
      50%
    • Wind
      Speed
      32 k/h
    • Cloud
      Cover
      69%
    more
Next Previous
Hi -5° RealFeel® -10° Precipitation 6%

Day

N

E

S

W

  • ENE 13 km/h
  • Gusts: 20 km/h

Some sunshine giving way to clouds

  • Max UV Index: 1 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo -6° RealFeel® -11° Precipitation 20%

Night

N

E

S

W

  • E 13 km/h
  • Gusts: 20 km/h

Warmer in the evening; otherwise, mostly cloudy

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

Temperature History - Dec 22

more Historical Weather Data >
  Today Normal Record 12/22/2013
High -5° -4° 14° (1949) -6°
Low -6° -12° -31° (1955) -8°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:40 AM with 8:43 of sunlight, then sets at 4:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:47 AM with 9:47 of moolight, then sets at 5:34 PM

Nepean Weather Report

Weekend Update on White Christmas Potential in Canada

December 20, 2014; 3:49 PM ET

Update on White Christmas probabilities for Canada more >