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Dundas, Ontario

58°F
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58°
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Dundas, 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
57°
38°
27
56°
34°
28
65°
45°
29
53°
39°
30
57°
35°
1
54°
32°
2
47°
33°
3
62°
33°
4
75°
50°
5
66°
48°
6
51°
36°
7
54°
36°
8
60°
38°
9
67°
43°
10
58°
38°
11
59°
36°
12
53°
31°
13
63°
44°
14
54°
44°
15
69°
43°
16
70°
49°
17
85°
57°
18
89°
53°
19
87°
67°
20
Partly sunny and cooler
66°
43°
21
Partly sunny and cooler
57°
45°
22
Variably cloudy and breezy
57°
47°
23
Breezy with periods of rain
53°
50°
24
Cloudy with a few showers
67°
55°
25
A couple of showers possible
71°
51°
26
Partly sunny, a few showers
75°
56°
27
Some sun, a couple of showers
73°
56°
28
Plenty of sunshine
72°
55°
29
Sunny to partly cloudy
74°
56°
30
Mostly cloudy
72°
57°
31
Mostly cloudy
73°
58°
1
Times of sun and clouds
71°
56°
2
A shower and thunderstorm
72°
50°
3
Cloudy and humid
76°
56°
4
A couple of morning showers
75°
57°
5
Humid with rain tapering off
76°
55°
6
Rather cloudy and less humid
74°
54°

Temperature Graph

°F
90° 78° 66° 54° 42° 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 Dundas

Dundas's May 2026 forecast shows daily high temperatures ranging from 53° to 76°, with overnight lows between 43° and 58°. The average high for May is 70° with an average low of 53°. 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 Dundas. See also: June | July | August.

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August 2026

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Weather Near Dundas:

  • Hamilton, Ontario
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