Centretown Observatory:

Current Weather

Times in Eastern Daylight Time (EDT = GMT-4)

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   Latest Observations from CTO Weather Centre - Saturday, June 27, 2026 at 06:19 EDT
   Local Sky: Sunny
   Airport: Mainly Sunny

 

Centretown   

Airport   

   Temperature:

   Humidex:

   

   Wind Chill Index:

   

   Relative Humidity:

92

%

99 %

   Dew Point:

   Precipitation Today:

   

   Sunshine Today:

01:05

     
 

Centretown   

Airport   

   Barometric Pressure:

 

   - Trend:

Falling

  Falling    

   Winds:

E at

NE at  

   - Bearing (approx.):

090 ° 045 °  

   - Recent Gust:

     km/h  

   Visibility:

     

   Capture Accuracy:

144/144 (100.00%)  

   Webcams and Radar:

CTO Webcam:

Parliament Hill Webcam:

EC Local Radar:

EC National Radar:

About... Parliament Hill Webcam

   Regional Watches and Warnings:

Current Satellite Imagery:

S. and E. Ontario:
Click for source page

Marine - Great Lakes:
Click for source page

Visible:
Click for EC website

Infrared:
Click for EC website

 
   Today: 15:38 of daylight    Yesterday: 15:39 of daylight
 

Centretown

Airport

   Sunrise:

    05:17     05:17

   Sunset:

    20:55     20:55
 

   Normal High:

   

   Normal Low:

   

   Record High:

(2021) (1941)

   Record Low:

(2004) (2024)
 
   

Centretown

 

Airport

   Sunrise:

    05:16     05:16

   Sunset:

    20:55     20:55
 

   High:

(16:29) (19:00)

   Low:

(01:44) (01:37)

   Precip:

   

   Sunshine:

04:10          
  

   Current and Upcoming Events (next 7 days: 10):

 
   
Lytton: Hotter than Hell - Mon, June 29 @ 01:00 (-1d, 18h, 40m)
On this day in 2021, the all-time Candian high-temperature record--49.6° celsius--was recorded in the town of Lytton, British Columbia, in the midst of a "heat dome" event. Very literally the very next day, the town was razed in a forest fire.
   
Full Moon - Mon, June 29 @ 19:56 (-2d, 13h, 36m)
The Moon is most-opposite the Sun in the sky, rising as the sun sets.
   
Lytton: Gone to Hell - Tue, June 30 @ 01:00 (-2d, 18h, 40m)
On this day in 2021, literally the day after setting an all-time Canadian high-temperature record, the town of Lytton was wiped out in a forest fire. In the midst of a "heat dome" event, during a parched summer, the forests of BC were tinder-dry.
   
CTO Established - Tue, June 30 @ 01:00 (-2d, 18h, 40m)
The Centretown Observatory was established on this day in 1990 (36 years ago). Back then, the surrounding trees were much shorter, and the radio bands much quieter. *sigh*. Manual records have been kept since 2001. The first iteration of our online weather system was launched in 2009, and the current system first became operational 24/7 in early 2012.
   
Canada Day - Wed, July 1 @ 01:00 (-3d, 18h, 40m)
Happy birthday to Canada, now 159 years old!
   
PEI Joins Confederation - Wed, July 1 @ 01:00 (-3d, 18h, 40m)
Today marks 153 years since Prince Edward Island joined the Canadian Confederation in 1873.
   
Battle of the Somme - Wed, July 1 @ 01:00 (-3d, 18h, 40m)
From this day in 1916, to November 18, Canadians were engaged in the Battle of the Somme. The battle helped to cement their reputation as hardened, first-class troops who gave their all in the quest for victory.
   
Battle of Beaument-Hamel - Wed, July 1 @ 01:00 (-3d, 18h, 40m)
July First has a different meaning for Newfoundlanders, who observe the anniversary of this battle, which occurred during the opening of the Battle of the Somme, in 1916. The Newfoundland Regiment suffered heavy losses that day; but they, like their Canadian brothers, emerged from this baptism of fire with a hard-earned reputation as front-line troops. After the war, a stunning monument was erected at the site, featuring a bronze caribou on a large stone pedestal.
   
HMCS Bonvaventure decommissioned - Fri, July 3 @ 01:00 (-5d, 18h, 40m)
On this day in 1970, HMCS Bonaventure was decomissioned after 13 years' service. This vessel was Canada's third aircraft carrier, after Warrior and Magnificent. Some 215 metres long and 34 wide, she was a small (by modern standards) ship of her type, but she was able to maintain a constant aerial screen during operations. Originally laid down during WWII, as the British ship HMS Powerful, she was mothballed after the war; she was acquired by the Canadian government in 1952 and commissioned in January of 1957. The Author nostalgically remembers car rides past her, in the Halifax dockyard, in the late Nineteen-Sixties. She was a big ship.
   
US Independence Day - Sat, July 4 @ 01:00 (-6d, 18h, 40m)
Not to be confused with the hokey mid-90's movie.
   - times in EST or EDT according to date of event
  

   Recent Events (Reverse Order; Last 7 days: 5):

 
   
St. Lawrence Seaway Opens - Fri, June 26 @ 01:00 (+1d, 5h, 20m)
On this day in 1959, the St. Lawrence Seaway, considered one of the engineering marvels of the Twentieth Century, was officially opened by Her Majesty, Queen Elizabeth II. The system consists of 13 locks and is jointly managed by Canada and the United States.
   
Operation Barbarossa - Mon, June 22 @ 01:00 (+5d, 5h, 20m)
On this day in 1941 (85 years ago), Nazi Germany began its invasion of the Soviet Union. Despite initial gains, the invasion eventually bogged down and ultimately was repulsed by the Soviets, who captured Berlin in 1945.
   
Summer Solstice - Sat, June 20 @ 04:25 (+7d, 1h, 55m)
Spring ends; Summer begins (N. Hemisphere). Autumn ends; Winter begins (S. Hemisphere). Longest day of the year (N. Hemisphere). Shortest Day of the year (S. Hemisphere)
   
First Quarter - Sun, June 21 @ 17:55 (+5d, 12h, 25m)
A waxing half-Moon is near the meridian (halfway across the sky) as the Sun sets.
   
Shelling of Estevan Lighthouse - Sat, June 20 @ 01:00 (+7d, 5h, 20m)
On this day in 1942, 84 years ago, Japanese submarine I-26 shelled the lighthouse at Estevan Point, on Vancouver Island. It was the only instance of the bombardment of Canada during the war.
   - times in EST or EDT according to date of event
  

   Current Terminator:

Tropical Weather Synopses:

Americas:
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Space Weather Dashboard:

Tropical Weather (NOAA):
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Canadian Hurricane Centre:
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Regional Temperatures (Cities Clickable):

National Temperatures (Cities Clickable):


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