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Arthur, Ontario

71°F
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71°
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Arthur, 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
61°
35°
27
65°
40°
28
60°
48°
29
50°
35°
30
50°
31°
1
48°
29°
2
43°
27°
3
59°
26°
4
69°
41°
5
60°
44°
6
49°
37°
7
51°
32°
8
57°
33°
9
62°
35°
10
52°
32°
11
52°
31°
12
55°
28°
13
54°
40°
14
54°
40°
15
64°
36°
16
68°
41°
17
82°
46°
18
83°
62°
19
81°
53°
20
56°
40°
21
61°
40°
22
61°
40°
23
55°
45°
24
60°
45°
25
Decreasing clouds and warmer
75°
51°
26
Sunny; breezy in the p.m.
79°
55°
27
Clouds and sun with a shower
76°
49°
28
Sunshine, breezy and cooler
65°
45°
29
Sunny to partly cloudy
63°
44°
30
Partly sunny and cool
60°
43°
31
Times of clouds and sun
66°
47°
1
Partly sunny
65°
49°
2
A few afternoon showers
69°
47°
3
A couple of thunderstorms
70°
50°
4
Mostly sunny
71°
53°
5
A bit of rain in the morning
72°
53°
6
Sunshine and a few clouds
72°
54°

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 Arthur

Arthur's May 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 43° and 55°. The average high for May is 69° with an average low of 49°. 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 Arthur. See also: June | July | August.

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World North America Canada Ontario Arthur

Weather Near Arthur:

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