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Weather Ottawa: Current forecast

Ottawa / Ontario / Canada

18.3 °C
Feels like 18.3 °C
Min 11 °C / Max 20 °C
Weather Ottawa: Partly cloudy, 18 °C Partly cloudy
16.2 km/h WNW
Wind
31.5 km/h WNW
Gusts
1009 hPa
Pressure
0 mm
Precipitation
60 %
Humidity
0
UV index

Pollen (today)

Hazel None
Alder None
Birch Low
Oak None
Grass Low
Mugwort None
Ragweed None
05:20 / 20:39
Sunrise / Sunset
17:24 / 03:06
Moonrise / Moonset
Waxing Moon (90 %)
Moon phase

Updated: May 27, 2026, 7:51 CEST May 27, 2026, 1:51 EDT

Today's Summary

In Ottawa the weather today is partly cloudy. The thermometer currently shows 18.3°C. Take an umbrella with you today – you'll probably need it. During the day temperatures will range between 11.3°C and 19.6°C.

Hourly forecast – Ottawa, today

May 27, 01:00
18 °C
Partly cloudy
Ottawa May 27, 01:00: Partly cloudy, 18 °C
May 27, 02:00
18 °C
Clear
Ottawa May 27, 02:00: Clear, 18 °C
May 27, 03:00
17 °C
Clear
Ottawa May 27, 03:00: Clear, 17 °C
May 27, 04:00
16 °C
Clear
Ottawa May 27, 04:00: Clear, 16 °C
May 27, 05:00
15 °C
Clear
Ottawa May 27, 05:00: Clear, 15 °C
May 27, 06:00
14 °C
Sunny
Ottawa May 27, 06:00: Sunny, 14 °C
May 27, 07:00
14 °C
Sunny
Ottawa May 27, 07:00: Sunny, 14 °C
May 27, 08:00
15 °C
Sunny
Ottawa May 27, 08:00: Sunny, 15 °C
May 27, 09:00
16 °C
Sunny
Ottawa May 27, 09:00: Sunny, 16 °C
May 27, 10:00
17 °C
Sunny
Ottawa May 27, 10:00: Sunny, 17 °C
May 27, 11:00
18 °C
Sunny
Ottawa May 27, 11:00: Sunny, 18 °C
May 27, 12:00
19 °C
Partly cloudy
Ottawa May 27, 12:00: Partly cloudy, 19 °C
May 27, 13:00
19 °C
Patchy rain possible
Ottawa May 27, 13:00: Patchy rain possible, 19 °C
May 27, 14:00
18 °C
Patchy rain possible
Ottawa May 27, 14:00: Patchy rain possible, 18 °C
May 27, 15:00
17 °C
Patchy rain possible
Ottawa May 27, 15:00: Patchy rain possible, 17 °C
May 27, 16:00
17 °C
Partly cloudy
Ottawa May 27, 16:00: Partly cloudy, 17 °C
May 27, 17:00
17 °C
Partly cloudy
Ottawa May 27, 17:00: Partly cloudy, 17 °C
May 27, 18:00
16 °C
Sunny
Ottawa May 27, 18:00: Sunny, 16 °C
May 27, 19:00
15 °C
Sunny
Ottawa May 27, 19:00: Sunny, 15 °C
May 27, 20:00
14 °C
Partly cloudy
Ottawa May 27, 20:00: Partly cloudy, 14 °C
May 27, 21:00
13 °C
Partly cloudy
Ottawa May 27, 21:00: Partly cloudy, 13 °C
May 27, 22:00
12 °C
Partly cloudy
Ottawa May 27, 22:00: Partly cloudy, 12 °C
May 27, 23:00
12 °C
Partly cloudy
Ottawa May 27, 23:00: Partly cloudy, 12 °C
May 28, 00:00
12 °C
Partly cloudy
Ottawa May 28, 00:00: Partly cloudy, 12 °C
Time
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
Ottawa May 27, 01:00: Partly cloudy
Ottawa May 27, 02:00: Clear
Ottawa May 27, 03:00: Clear
Ottawa May 27, 04:00: Clear
Ottawa May 27, 05:00: Clear
Ottawa May 27, 06:00: Sunny
Ottawa May 27, 07:00: Sunny
Ottawa May 27, 08:00: Sunny
Ottawa May 27, 09:00: Sunny
Ottawa May 27, 10:00: Sunny
Ottawa May 27, 11:00: Sunny
Ottawa May 27, 12:00: Partly cloudy
Ottawa May 27, 13:00: Patchy rain possible
Ottawa May 27, 14:00: Patchy rain possible
Ottawa May 27, 15:00: Patchy rain possible
Ottawa May 27, 16:00: Partly cloudy
Ottawa May 27, 17:00: Partly cloudy
Ottawa May 27, 18:00: Sunny
Ottawa May 27, 19:00: Sunny
Ottawa May 27, 20:00: Partly cloudy
Ottawa May 27, 21:00: Partly cloudy
Ottawa May 27, 22:00: Partly cloudy
Ottawa May 27, 23:00: Partly cloudy
Ottawa May 28, 00:00: Partly cloudy
Temperature (°C)
Chance of rain (%)
0
0
0
0
0
0
0
0
0
0
0
0
71
81
81
0
0
0
0
0
0
0
0
0
Precipitation
0.1 mm
0.1 mm
0.1 mm
Wind (km/h)
WNW
16
NW
10
NW
11
NW
12
NNW
12
NNW
13
NNW
14
NNW
16
N
16
N
15
N
14
NNW
13
NNW
12
NW
11
WNW
12
NW
13
NW
10
NNW
11
NNW
13
NNW
13
NNW
12
NNW
13
NNW
13
NNW
14
Pressure (hPa)
1009
1010
1010
1011
1011
1012
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
Humidity (%)
60 %
65 %
63 %
64 %
70 %
75 %
73 %
70 %
67 %
64 %
60 %
57 %
56 %
60 %
71 %
71 %
71 %
70 %
70 %
69 %
71 %
72 %
73 %
72 %
Cloud cover (%)
50 %
0 %
0 %
0 %
0 %
0 %
1 %
4 %
7 %
10 %
18 %
31 %
90 %
65 %
75 %
60 %
29 %
18 %
17 %
46 %
42 %
44 %
45 %
46 %

14-day weather forecast – Ottawa

14-day trend for Ottawa: The second week looks noticeably warmer and more pleasant. Lows can drop to around 4.1°C at night, with daytime highs up to 27°C.

Date
May 27
May 28
May 29
May 30
May 31
Jun 1
Jun 2
Jun 3
Jun 4
Jun 5
Jun 6
Jun 7
Jun 8
Jun 9
Ottawa May 27, 2026: Patchy rain possible
Ottawa May 28, 2026: Patchy rain possible
Ottawa May 29, 2026: Patchy rain possible
Ottawa May 30, 2026: Partly cloudy
Ottawa May 31, 2026: Patchy rain possible
Ottawa June 1, 2026: Patchy rain possible
Ottawa June 2, 2026: Sunny
Ottawa June 3, 2026: Sunny
Ottawa June 4, 2026: Patchy rain possible
Ottawa June 5, 2026: Sunny
Ottawa June 6, 2026: Partly cloudy
Ottawa June 7, 2026: Sunny
Ottawa June 8, 2026: Sunny
Ottawa June 9, 2026: Partly cloudy
Temperature (°C)
Chance of rain (%)
81
81
89
0
80
88
0
0
72
0
0
0
0
0
Precipitation
0.2 mm
0.1 mm
3.6 mm
0 mm
0.7 mm
0.1 mm
0.2 mm
0.1 mm
0.1 mm
0.1 mm
Wind max (km/h)
16
19
36
19
12
13
8
7
14
20
27
21
22
21
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
May 27, 2026 Ottawa May 27, 2026: Patchy rain possible Patchy rain possible 11 °C 20 °C 05:20 20:39 17:24 03:06 Waxing Moon (90 %)
May 28, 2026 Ottawa May 28, 2026: Patchy rain possible Patchy rain possible 9 °C 17 °C 05:20 20:39 18:37 03:27 Waxing Moon (96 %)
May 29, 2026 Ottawa May 29, 2026: Patchy rain possible Patchy rain possible 7 °C 13 °C 05:19 20:40 19:49 03:53 Full Moon (99 %)
May 30, 2026 Ottawa May 30, 2026: Partly cloudy Partly cloudy 4 °C 19 °C 05:18 20:41 20:57 04:24 Full Moon (100 %)
May 31, 2026 Ottawa May 31, 2026: Patchy rain possible Patchy rain possible 8 °C 17 °C 05:18 20:42 21:58 05:04 Full Moon (99 %)
June 1, 2026 Ottawa June 1, 2026: Patchy rain possible Patchy rain possible 7 °C 21 °C 05:17 20:43 22:49 05:52 Waning Moon (96 %)
June 2, 2026 Ottawa June 2, 2026: Sunny Sunny 8 °C 23 °C 05:17 20:44 23:30 06:49 Waning Moon (90 %)
June 3, 2026 Ottawa June 3, 2026: Sunny Sunny 10 °C 24 °C 05:16 20:45 Does not rise today 07:52 Waning Moon (83 %)
June 4, 2026 Ottawa June 4, 2026: Patchy rain possible Patchy rain possible 12 °C 17 °C 05:16 20:46 00:02 08:58 Waning Moon (74 %)
June 5, 2026 Ottawa June 5, 2026: Sunny Sunny 12 °C 27 °C 05:15 20:46 00:28 10:05 Last Quarter (64 %)
June 6, 2026 Ottawa June 6, 2026: Partly cloudy Partly cloudy 17 °C 27 °C 05:15 20:47 00:49 11:10 Last Quarter (54 %)
June 7, 2026 Ottawa June 7, 2026: Sunny Sunny 12 °C 21 °C 05:15 20:48 01:07 12:16 Last Quarter (43 %)
June 8, 2026 Ottawa June 8, 2026: Sunny Sunny 7 °C 15 °C 05:14 20:48 01:23 13:21 Last Quarter (33 %)
June 9, 2026 Ottawa June 9, 2026: Partly cloudy Partly cloudy 7 °C 15 °C 05:14 20:49 01:40 14:28 Waning Crescent (24 %)