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Caledonia, Ontario

45°F
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Caledonia

Ontario

45°
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Caledonia, 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
Rain
74°
57°
27
Cloudy with a touch of rain
74°
58°
28
Rather cloudy
76°
58°
29
Mostly cloudy and humid
79°
59°
30
Partly sunny and humid
82°
63°
31
Couple of thunderstorms
84°
63°
1
A shower and thunderstorm
84°
61°
2
A couple of t-storms; humid
83°
62°
3
A shower and t-storm; humid
79°
56°
4
A shower and t-storm; humid
78°
58°
5
Cloudy with a touch of rain
74°
63°
6
Humid with rain at times
75°
60°
7
Partial sunshine
77°
60°
8
Mostly sunny
76°
63°
9
Couple of thunderstorms
75°
62°
10
Partly sunny
76°
59°
11
A couple of afternoon showers
76°
61°
12
Hist. Avg.
80°
57°
13
Hist. Avg.
80°
57°
14
Hist. Avg.
80°
57°
15
Hist. Avg.
80°
57°
16
Hist. Avg.
80°
57°
17
Hist. Avg.
80°
57°
18
Hist. Avg.
79°
57°
19
Hist. Avg.
79°
56°
20
Hist. Avg.
79°
56°
21
Hist. Avg.
78°
56°
22
Hist. Avg.
78°
56°
23
Hist. Avg.
78°
56°
24
Hist. Avg.
78°
55°
25
Hist. Avg.
77°
55°
26
Hist. Avg.
77°
55°
27
Hist. Avg.
77°
55°
28
Hist. Avg.
76°
55°
29
Hist. Avg.
76°
54°
30
Hist. Avg.
76°
54°
31
Hist. Avg.
76°
54°
1
Hist. Avg.
75°
54°
2
Hist. Avg.
75°
54°
3
Hist. Avg.
75°
53°
4
Hist. Avg.
74°
53°
5
Hist. Avg.
74°
53°

Temperature Graph

°F
90° 82° 74° 66° 58° 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
*Temporarily Unavailable

August Weather in Caledonia

Caledonia's August 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 56° and 63°. The average high for August is 78° with an average low of 60°. 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 Caledonia. See also: September | October | November.

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Weather Near Caledonia:

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