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Next 5 Days
  • Today

    Sep 18

    A thunderstorm in spots 25°Lo 13°
    more
  • Fri

    Sep 19

    Partly sunny 23°Lo 8°
  • Sat

    Sep 20

    Mostly sunny and breezy 19°Lo 6°
    more
  • Sun

    Sep 21

    Partly sunny and pleasant 20°Lo 8°
    more
  • Mon

    Sep 22

    Mostly sunny 23°Lo 9°
    more
< Previous 8 hours Next 8 hours >
  Fri
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Partly Cloudy
Partly Cloudy
Sunny
Mostly Sunny
Temp (°C) 17° 18° 20° 21° 22° 23° 23° 22°
RealFeel® 16° 18° 20° 22° 23° 23° 22° 21°
Humidity 53% 49% 48% 47% 46% 43% 45% 48%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
20%
 
20%
 
20%
 
20%
 
16%
 
7%
 
7%
 
6%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 8 NW 8 NNW 8 NNW 8 NNW 10 NW 11 NW 13 NW 14 NW
UV Index 1 2 3 4 3 3 3 2
Cloud Cover 41% 31% 21% 10% 70% 70% 8% 11%
Dew Point 10° 10° 10° 11°
Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 23° 18° N/A 14°
Low N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:26 AM with 12:23 of sunlight, then sets at 7:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:55 AM with 14:40 of moolight, then sets at 5:35 PM

Top Story

Reston Weather Report

My Thoughts on the Canada Weather Pattern

September 18, 2014; 3:10 PM ET

Here are my latest thoughts on upcoming weather pattern highlights across canada for the next few weeks. more >