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Blue Mountain, Ontario

52°F
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52°
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Blue Mountain, 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
Cloudy and humid
76°
56°
27
Morning rain
81°
55°
28
Showers around in the p.m.
77°
56°
29
Partly sunny, showers around
81°
55°
30
A couple of morning showers
77°
52°
31
A shower and thunderstorm
73°
50°
1
Sunshine and less humid
74°
54°
2
A bright blue sky
78°
55°
3
Humid with thunderstorms
80°
56°
4
Humid with a few showers
82°
55°
5
Cloudy, t-storms; not as warm
79°
54°
6
Partly sunny and less humid
78°
55°
7
Mostly cloudy
81°
54°
8
Afternoon thunderstorms
81°
54°
9
Mainly cloudy with t-storms
80°
46°
10
A touch of morning rain
74°
47°
11
A thunderstorm in spots
72°
48°
12
Times of clouds and sun
73°
49°
13
Couple of thunderstorms
71°
46°
14
Mostly cloudy with showers
72°
46°
15
A couple of showers
77°
53°
16
Mostly sunny
76°
53°
17
Partly sunny
75°
48°
18
Cloudy with showers
73°
45°
19
Clouds yielding to sun
77°
47°
20
Mostly sunny
79°
50°
21
Sunny
79°
53°
22
Mostly sunny
78°
53°
23
Mostly sunny
77°
49°
24
Partly sunny
79°
48°
25
A t-storm around in the p.m.
78°
43°
26
A morning thunderstorm or two
70°
47°
27
A shower and thunderstorm
71°
51°
28
Partly sunny, a few showers
72°
51°
29
Mostly sunny
73°
50°
30
Cloudy with thunderstorms
74°
51°
31
Mostly sunny and less humid
76°
47°
1
A couple of morning showers
74°
46°
2
Mostly sunny
72°
42°
3
A little morning rain; cloudy
70°
42°
4
Plenty of sunshine
73°
45°
5
Some sun with showers around
74°
49°

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 Blue Mountain

Blue Mountain's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 42° and 56°. The average high for August is 76° with an average low of 50°. 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 Blue Mountain. See also: September | October | November.

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Weather Near Blue Mountain:

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