• Early AM

    May 21

    Lo 17°

    A couple of showers and thunderstorms

    Migraine Headache Weather
    • Hi
      RealFeel
      21°
    • UV
      7 - High
    • Cloud
      Cover
      77%
    more
  • Today

    May 21

    27°Lo 16°

    Occasional rain and a t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      28°
    • UV
      6 - High
    • Cloud
      Cover
      79%
  • Wed

    May 22

    23°Lo 9°

    Mostly cloudy with a t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      23°
    • UV
      6 - High
    • Cloud
      Cover
      80%
    more
  • Thu

    May 23

    13°Lo 0°

    A couple of t-storms; cooler

    Neutral weather for migraines
    • Hi
      RealFeel
      13°
    • UV
      3 - Moderate
    • Cloud
      Cover
      90%
    more
  • Fri

    May 24

    13°Lo 0°

    Cool with partial sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      14°
    • UV
      7 - High
    • Cloud
      Cover
      40%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
T-storms
Mostly Cloudy
T-storms
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°C) 18° 18° 17° 18° 19° 21° 22° 24°
RealFeel® 17° 17° 16° 17° 18° 21° 24° 26°
Humidity 82% 86% 89% 88% 85% 79% 75% 69%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
37%
 
47%
 
51%
 
43%
 
51%
 
47%
 
43%
 
47%
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) 5 SSE 5 SSE 6 S 6 SSW 8 SW 10 SW 11 SW 11 SW
UV Index 0 0 0 0 1 2 3 5
Cloud Cover 73% 72% 73% 76% 90% 84% 79% 76%
Dew Point 15° 15° 15° 16° 17° 18° 18° 18°
Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 27° 19° 31° (1977) 27°
Low 16° -1° (1967) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:51 AM with 14:54 of sunlight, then sets at 8:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:51 PM with 11:07 of moolight, then sets at 3:58 AM

Top Story

Cambridge Weather Report

The Summer Outlook for Canada

May 20, 2013; 2:44 PM ET

The Accuweather.com summer forecast for Canada. more >