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Ottawa Macdonald-Cartier Int'l Airport, Ontario

Latitude 45.32° N | Longitude 75.67° W

Past 24 Hour Conditions

Date / Time
(EDT)
Conditions Temperature
(°C)
Wind
(km/h)
Relative
humidity
(%)
Dew
point
(°C)
Pressure
(kPa)
Visibility
(km)
09 March 2026
17:00


Partly Cloudy

15  (14.9)   SSW 34 gusts 48 37 0 100.5 24
16:00


Partly Cloudy

14  (14.2) SSW 34 gusts 54 39 1 100.4 24
15:00


Partly Cloudy

13  (12.8) SSW 36 gusts 53 43 1 100.5 24
14:00


Mostly Cloudy

11  (11.2) SSW 33 gusts 48 47 0 100.5 24
13:00


Mostly Cloudy

11  (10.7) SSW 30 gusts 49 49 0 100.6 24
12:00


Mostly Cloudy

10  (9.7) SSW 30 gusts 40 51 0 100.6 24
11:00


Mostly Cloudy

9  (9.0) SSW 27 gusts 42 53 0 100.7 24
10:00


Mostly Cloudy

7  (7.0) S 21 60 0 100.7 24
09:00


Mostly Cloudy

6  (5.8) S 17 65 0 100.8 24
08:00


Mostly Cloudy

5  (5.1) S 10 71 0 100.8 24
07:00


Mostly Cloudy

5  (4.5) S 10 76 1 100.8 24
06:00


Mostly Cloudy

4  (3.5) SSE 11 86 1 100.8 24
05:00


Light Rainshower

4  (4.2) SSW 22 79 1 100.8 10
04:00


Mostly Cloudy

4  (3.6) S 14 75 0 100.8 24
03:00


Mostly Cloudy

4  (3.7) S 13 75 0 100.9 24
02:00


Mostly Cloudy

4  (4.3) SSW 13 73 0 100.9 24
01:00


Mainly Clear

4  (4.3) WSW 4 71 -1 100.9 24
00:00


Mainly Clear

4  (4.0) SW 13 72 -1 100.8 24
08 March 2026
23:00


Mainly Clear

3  (3.4)   SW 8 76 0 100.8 24
22:00


Mainly Clear

4  (4.0) SSW 14 75 0 100.7 24
21:00


Mostly Cloudy

5  (4.6) SSW 17 74 0 100.6 24
20:00


Cloudy

5  (5.1) SSW 20 gusts 33 72 0 100.6 24
19:00


Mostly Cloudy

6  (5.6) SSW 19 68 0 100.6 24
18:00


Mostly Cloudy

6  (6.0) SSW 18 gusts 30 60 -1 100.5 24
17:00


Mostly Cloudy

6  (5.8) SW 27 gusts 49 60 -1 100.4 24
Legend
n/a: not available

This table displays weather elements available for this station

Highest temperature
Lowest temperature

Equal temperature values are all highlighted

This is an automated product, generated using preliminary data.

If you require additional historical weather information, please visit Climate website.

Highlighting criteria

Significant Weather Conditions

To highlight potentially dangerous weather conditions the following are displayed in bold characters:

  • Tornado
  • Funnel Cloud
  • Thunderstorm
  • Lightning
  • Hail
  • Freezing precipitation
  • Heavy precipitation
  • Any other weather condition, if the visibility is 1.0 km0.6 miles or less

In addition some weather elements are displayed in bold characters when they reach the following values:

Temperatures:

  • Hot: 30.0°C86°F and higher
  • Cold: -30.0°C-22°F and lower
Humidex:
  • Values of 3595 and more
Wind chill
  • Values of -35-31 and below

Winds:

  • Mean speed of 60 km/h37 mph or more
  • Gust speed of 90 km/h56 mph or more

Visibility:

  • 1.0 km0.6 miles or less along with the weather conditions

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