• Tonight

    May 18

    Lo 11°

    Mostly cloudy

    Sinus Headache Weather
    • Hi
      RealFeel
      21°
    • UV
      6 - High
    • Cloud
      Cover
      73%

  • Sun

    May 19

    24°Lo 12°

    Times of clouds and sun

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      24°
    • UV
      7 - High
    • Cloud
      Cover
      46%
    more

  • Mon

    May 20

    27°Lo 16°

    Partly sunny and pleasant

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      27°
    • UV
      7 - High
    • Cloud
      Cover
      33%
    more

  • Tue

    May 21

    26°Lo 14°

    Periods of rain and a t-storm

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      28°
    • UV
      6 - High
    • Cloud
      Cover
      77%
    more

  • Wed

    May 22

    24°Lo 15°

    A couple of thunderstorms

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      24°
    • UV
      6 - High
    • Cloud
      Cover
      86%
    more
Next Previous
Hi 20° RealFeel® 21° Precipitation 35%

Day

N

E

S

W

  • E 13 km/h
  • Gusts: 23 km/h

Variable cloudiness

  • Max UV Index: 6 (High)
  • 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 11° RealFeel® 10° Precipitation 25%

Night

N

E

S

W

  • NE 10 km/h
  • Gusts: 16 km/h

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 20° 19° 34° (1962) 21°
Low 11° 7° -1° (1981) 9°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:51 AM with 14:49 of sunlight, then sets at 8:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:30 PM with 12:54 of moolight, then sets at 2:24 AM

Top Story

Halton Hills Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >