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Sudbury, Ontario

77°F
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Sudbury

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77°
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Sudbury, 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

August

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
82°
56°
27
Humid with showers around
79°
61°
28
A t-storm; breezy in the p.m.
75°
54°
29
Mostly sunny and nice
79°
51°
30
Sun mixing with clouds; warm
85°
56°
31
Very warm with high clouds
87°
64°
1
A couple of thunderstorms
78°
61°
2
A passing shower or two
75°
55°
3
Mostly sunny
81°
59°
4
Warm with plenty of sunshine
82°
60°
5
Thunderstorms, mainly late
78°
58°
6
A little afternoon rain
74°
57°
7
Considerable cloudiness
76°
57°
8
Shifting clouds and sun
76°
58°
9
Humid with decreasing clouds
77°
55°
10
Partly sunny
78°
60°
11
Increasing cloudiness
77°
60°
12
A shower and t-storm; humid
77°
59°
13
Mostly sunny and less humid
78°
59°
14
Mostly sunny
73°
58°
15
Plenty of sunshine
75°
60°
16
A little morning rain
77°
60°
17
Overcast and less humid
77°
59°
18
Shifting clouds and sun
72°
58°
19
A bit of afternoon rain
72°
59°
20
Mostly sunny and less humid
75°
58°
21
Times of clouds and sun
70°
58°
22
A couple of afternoon showers
72°
59°
23
Mostly cloudy and warm
76°
56°
24
Sunny and less humid
73°
53°
25
Mostly cloudy
68°
57°
26
Rather cloudy
73°
58°
27
Cloudy and warm
75°
57°
28
A passing morning shower
74°
58°
29
Turning cloudy
74°
56°
30
Sunny
67°
54°
31
Increasing cloudiness
65°
52°
1
Mostly cloudy
65°
55°
2
Turning cloudy
66°
54°
3
A little afternoon rain
68°
55°
4
Mostly cloudy
71°
56°
5
Cloudy with showers
72°
55°

Temperature Graph

°F
90° 80° 70° 60° 50° Aug
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

August Weather in Sudbury

Sudbury's August 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 51° and 64°. The average high for August is 75° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sudbury. See also: September | October | November.

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World North America Canada Ontario Sudbury

Weather Near Sudbury:

  • Barrie, Ontario
  • Greater Sudbury, Ontario
  • Rouyn-Noranda, Quebec
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