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Hourly Forecast - Ottawa

Date/Time
(EDT)
Temp.
(°C)
Weather ConditionsLikelihood of precip (%) UV indexWind
(km/h)
Humidex
20 July 2026
15:00 25 Sunny

Sunny

05SW 20
28
16:00 26 Sunny

Sunny

03SW 20
29
17:00 26 Sunny

Sunny

01SW 20
30
18:00 25 Sunny

Sunny

0*S 10
29
19:00 24 Sunny

Sunny

0*S 10
28
20:00 22 Sunny

Sunny

0*S 10
25
21:00 21 Clear

Clear

0*S 10
*
22:00 20 Clear

Clear

0*S 10
*
23:00 19 A few clouds

A few clouds

0*S 10
*
21 July 2026
00:00 18 A few clouds

A few clouds

0*S 10
*
01:00 18 A few clouds

A few clouds

0*S 10
*
02:00 17 Partly cloudy

Partly cloudy

0*S 10
*
03:00 17 Partly cloudy

Partly cloudy

0*S 10
*
04:00 16 Partly cloudy

Partly cloudy

0*S 10
*
05:00 16 Mainly cloudy

Mainly cloudy

0*S 10
*
06:00 17 A mix of sun and cloud

A mix of sun and cloud

0*S 10
*
07:00 19 Mainly sunny

Mainly sunny

01S 20
*
08:00 20 Sunny

Sunny

02S 30
gusts 50
25
09:00 22 Mainly sunny

Mainly sunny

04S 30
gusts 50
27
10:00 23 A mix of sun and cloud

A mix of sun and cloud

06S 30
gusts 50
29
11:00 25 Mainly cloudy

Mainly cloudy

06SW 15
31
12:00 23 Cloudy

Cloudy

05S 10
30
13:00 22 Showers

Showers

903SE 10
29
14:00 20 Showers. Risk of thunderstorms

Showers. Risk of thunderstorms

902SE 20
28

* Value not significant

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