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Port Sydney, Ontario

68°F
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68°
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Port Sydney, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

May

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
67°
28°
27
70°
30°
28
60°
44°
29
50°
36°
30
50°
27°
1
49°
26°
2
46°
25°
3
55°
22°
4
74°
42°
5
60°
34°
6
50°
34°
7
50°
30°
8
56°
32°
9
61°
37°
10
52°
36°
11
53°
28°
12
55°
24°
13
54°
40°
14
51°
36°
15
66°
30°
16
Clouds giving way to some sun
68°
37°
17
Mostly sunny and nice
72°
53°
18
Warmer with sunny intervals
86°
60°
19
A shower and thunderstorm
81°
44°
20
Cloudy, cooler and less humid
50°
33°
21
Mostly sunny and cool
55°
34°
22
Mostly cloudy
63°
42°
23
Partly sunny
64°
44°
24
An afternoon shower possible
68°
51°
25
Chance of a shower
68°
47°
26
Plenty of sun
68°
48°
27
Times of clouds and sun
67°
47°
28
Plenty of sunshine
71°
48°
29
Rain becoming steadier
68°
44°
30
Rain
70°
50°
31
Mostly sunny and less humid
69°
49°
1
Mostly cloudy
69°
49°
2
Rain in the afternoon
68°
50°
3
A little afternoon rain
67°
50°
4
Rather cloudy
64°
48°
5
Clouds and sun
64°
47°
6
Rather cloudy
69°
51°

Temperature Graph

°F
90° 76° 62° 48° 34° May
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

May Weather in Port Sydney

Port Sydney's May 2026 forecast shows daily high temperatures ranging from 50° to 86°, with overnight lows between 33° and 60°. The average high for May is 68° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Port Sydney. See also: June | July | August.

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Weather Near Port Sydney:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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