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Sudbury, Ontario

61°F
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61°
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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
Mostly sunny, warm and humid
81°
62°
27
A t-storm around in the p.m.
81°
63°
28
Sunny, warm and less humid
80°
62°
29
Low humidity with sunshine
80°
60°
30
Increasing cloudiness
72°
58°
31
Some sun, then clouds
72°
57°
1
Plenty of sunshine
73°
59°
2
Mostly cloudy
75°
60°
3
Clouds and sun
76°
61°
4
Partly sunny with a t-shower
78°
60°
5
Mostly cloudy
78°
60°
6
Cloudy
77°
60°
7
Cloudy
75°
59°
8
Decreasing clouds
74°
60°
9
Mostly sunny
76°
60°
10
Sunny to partly cloudy
77°
58°
11
Sunny to partly cloudy
78°
60°
12
Clouds and sun
78°
60°
13
Decreasing clouds and warm
80°
56°
14
A blend of sun and clouds
79°
52°
15
A little morning rain
74°
59°
16
Mostly sunny
78°
54°
17
Morning thunderstorms
77°
50°
18
Partly sunny and less humid
70°
48°
19
Rather cloudy
67°
49°
20
Mostly sunny
68°
49°
21
Mostly sunny
70°
50°
22
Plenty of sunshine
71°
50°
23
Plenty of sunshine
74°
52°
24
Plenty of sunshine
75°
51°
25
Plenty of sunshine
75°
55°
26
Sunny
76°
56°
27
Partial sunshine
76°
52°
28
Morning rain, then a shower
69°
52°
29
Some sunshine
70°
54°
30
Mostly sunny
74°
56°
31
Partly sunny
74°
45°
1
Periods of rain
71°
44°
2
Sunny to partly cloudy
65°
47°
3
Plenty of sunshine
68°
53°
4
Mostly sunny
70°
54°
5
Mostly sunny
73°
44°

Temperature Graph

°F
80° 72° 64° 56° 48° 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 81°, with overnight lows between 44° and 63°. The average high for August is 74° with an average low of 55°. 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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