Centretown Observatory:

Current Weather

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

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   Latest Observations from CTO Weather Centre - Monday, May 19, 2025 at 05:09 EDT
   Local Sky: Twilight
   Airport: Cloudy

 

Centretown   

Airport   

   Temperature:

   Humidex:

   

   Wind Chill Index:

   

   Relative Humidity:

70

%

73 %

   Dew Point:

   Precipitation Today:

   

   Sunshine Today:

00:00

     
 

Centretown   

Airport   

   Barometric Pressure:

 

   - Trend:

Rising

  Rising    

   Winds:

SE at

NW at  

   - Bearing (approx.):

135 ° 315 °  

   - Recent Gust:

     km/h  

   Visibility:

     

   Capture Accuracy:

18/18 (100.00%)  

   Webcams and Radar:

CTO Webcam:

Parliament Hill Webcam:

EC Local Radar:

EC National Radar:

About... Parliament Hill Webcam

   Current Official Forecast:

[Source]

Forecasts issued Mon, May 19, 2025 at 05:00:

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
POP 0% POP 0% POP 40% POP 60% POP 60% POP 40% POP 0%
Monday night Tuesday night Wednesday night Thursday night Friday night Saturday night  
 
 
 
POP 0% POP 0% POP 60% POP 60% POP 60% POP 30%  
Monday: Overcast. Wind northwest 30 km/h gusting to 50. High 13. UV index 3 or moderate.
Monday night: Cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6.
Tuesday: Cloudy. Wind north 20 km/h becoming light late in the morning. High 15. UV index 5 or moderate.
Tuesday night: Cloudy periods. Low 7.
Wednesday: Cloudy with 40 percent chance of showers. High 13. POP 40%.
Wednesday night: Cloudy with 60 percent chance of showers. Low 9. POP 60%.
Thursday: Cloudy with 60 percent chance of showers. High 12. POP 60%.
Thursday night: Cloudy with 60 percent chance of showers. Low 8. POP 60%.
Friday: Cloudy with 60 percent chance of showers. High 12. POP 60%.
Friday night: Cloudy with 60 percent chance of showers. Low 8. POP 60%.
Saturday: Cloudy with 40 percent chance of showers. High 14. POP 40%.
Saturday night: Cloudy periods with 30 percent chance of showers. Low 8. POP 30%.
Sunday: A mix of sun and cloud. High 18.
 

   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: 15:03 of daylight    Yesterday: 15:01 of daylight
 

Centretown

Airport

   Sunrise:

    05:28     n/a

   Sunset:

    20:31     n/a
 

   Normal High:

   

   Normal Low:

   

   Record High:

(2024) (1962)

   Record Low:

(2002) (2023)
 
   

Centretown

 

Airport

   Sunrise:

    05:29     05:29

   Sunset:

    20:30     20:29
 

   High:

(01:09) (01:00)

   Low:

(23:44) (00:00)

   Precip:

   

   Sunshine:

00:35          
  

   Current and Upcoming Events (next 7 days: 3):

 
   
Last Quarter - Mon, May 19 @ 23:58 (-0d, 18h, 48m)
A waning half-Moon is near the meridian (halfway across the sky) as the Sun rises.
   
Candian Derecho of 2022 - Wed, May 21 @ 01:00 (-1d, 19h, 50m)
On this date, in 2022, a derecho hit southern Ontario and Quebec, with winds up to 190 km/h and a number of tornadoes. Damage was widespread, with many trees down and the power grid severely damaged. The Author experienced this storm, and classed it alongside Post-Tropical Storm Blanche, in 1975.
   
New Moon - Mon, May 26 @ 03:02 (-6d, 21h, 52m)
The Moon is nearest the Sun in the sky and cannot be seen from the ground.
   - times in EST or EDT according to date of event
  

   Recent Events (Reverse Order; Last 7 days: 4):

 
   
Victoria Day - Mon, May 19 @ 00:00 (+0d, 5h, 10m)
Canada takes a holiday on this date, in celebration of the life and accomplishments of Her Majesty, Queen Victoria (1819-05-24 - 1901.01.22).
   
Eruption of Mt. St. Helens - Sun, May 18 @ 01:00 (+1d, 4h, 10m)
On this day in 1980 (now 45 years ago), Mount Saint Helens, a beautiful, symmetrical stratovolcano cone often referred to as "the Fuji of the Northwest," erupted explosively after months of signs that it was waking up. The eruption was triggered by a huge landslide, and the mountain blew away its summit and the southern quadrant of its cone. In many areas, for the next couple of days, it was pitch-black from the clouds of volcanic dust. Huge lahars washed down many rivers, and the showpiece of the area, Spirit Lake, was drowned in boiling debris. The eruption was extensively covered by international media. Subsequent smaller eruptions carried ash up into Canada. The sound of the eruption was heard up to 320 kilometres away, including by the Author, as he delivered papers on southern Vancouver Island.
   
Full Moon - Mon, May 12 @ 04:55 (+7d, 0h, 15m)
The Moon is most-opposite the Sun in the sky, rising as the sun sets.
   
Manitoba and NWT Join Confederation - Mon, May 12 @ 01:00 (+7d, 4h, 10m)
Today marks 155 years since Manitoba and the North West Territories joined the Canadian Confederation in 1870.
   - 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):
Click for NHC website

Canadian Hurricane Centre:
Click for CHC website

Regional Temperatures (Cities Clickable):

National Temperatures (Cities Clickable):


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