• Tonight

    Sep 16

    Lo 5°

    Clear to partly cloudy

    Dust & Dander Weather
    • Precip
      25%
    • Wind
      Speed
      11 k/h
    • Cloud
      Cover
      64%
  • Wed

    Sep 17

    17°Lo 5°

    Some sun, then clouds

    Low indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      6 k/h
    • Cloud
      Cover
      55%
    more
  • Thu

    Sep 18

    13°Lo 1°

    Mostly sunny and cooler

    Moderate indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      11 k/h
    • Cloud
      Cover
      23%
    more
  • Fri

    Sep 19

    16°Lo 7°

    Mostly sunny and pleasant

    Moderate indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      6 k/h
    • Cloud
      Cover
      19%
    more
  • Sat

    Sep 20

    22°Lo 16°

    Mostly cloudy and breezy

    Low indoor dust & dander levels
    • Precip
      9%
    • Wind
      Speed
      19 k/h
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 18° RealFeel® 17° Precipitation 25%

Day

N

E

S

W

  • W 11 km/h
  • Gusts: 29 km/h

Intervals of clouds and sunshine

  • Max UV Index: 4 (Moderate)
  • 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 5° RealFeel® 4° Precipitation 13%

Night

N

E

S

W

  • W 8 km/h
  • Gusts: 16 km/h

Clear to partly 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 - Sep 16

more Historical Weather Data >
  Today Normal Record 9/16/2013
High 18° 19° 34° (1939) 12°
Low (1948)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:31 of sunlight, then sets at 7:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:27 AM with -10:-41 of moolight, then sets at 2:46 PM

Top Story

Nepean Weather Report

Widespread Frost, Killing Freeze to Seize Northeast Late This Week

September 16, 2014; 9:15 PM ET

The chilliest air of the season so far will settle over much of the Northeast Thursday into Friday and will bring frost to more areas than experienced frost early this week. more >