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Caledon, Ontario

65°F
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Caledon

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65°
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Caledon, 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

September

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
30
Sunny to partly cloudy
75°
52°
31
Mostly sunny
70°
48°
1
Partly sunny
69°
51°
2
Increasing cloudiness
69°
49°
3
Mostly cloudy
70°
54°
4
Mostly cloudy
73°
56°
5
Considerable cloudiness
78°
57°
6
Mostly cloudy and humid
77°
57°
7
Partly sunny
75°
51°
8
An a.m. shower, then t-storms
76°
53°
9
Sunny to partly cloudy
71°
55°
10
A shower and thunderstorm
77°
49°
11
Mostly cloudy with t-storms
77°
48°
12
Mostly sunny and less humid
72°
55°
13
Sunshine and a few clouds
76°
51°
14
Mostly cloudy with t-storms
76°
43°
15
Morning rain, then a shower
72°
40°
16
Mostly sunny
62°
41°
17
Plenty of sun
64°
44°
18
Sunshine
67°
51°
19
Times of clouds and sun
68°
52°
20
Mostly cloudy
68°
52°
21
Cloudy with a touch of rain
69°
51°
22
Couple of thunderstorms
73°
51°
23
Partial sunshine
72°
52°
24
Clouds and sun
72°
52°
25
Clouds and sun
74°
51°
26
Mostly sunny
74°
52°
27
A shower and thunderstorm
72°
37°
28
Rather cloudy with t-storms
71°
36°
29
Cooler with decreasing clouds
57°
40°
30
Mostly sunny
59°
38°
1
A little rain in the morning
58°
39°
2
Mostly sunny
59°
40°
3
Cloudy
61°
38°

Temperature Graph

°F
80° 70° 60° 50° 40° Sep
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
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in Caledon

Caledon's September 2026 forecast shows daily high temperatures ranging from 57° to 78°, with overnight lows between 36° and 57°. The average high for September is 70° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Caledon. See also: October | November | December.

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Weather Near Caledon:

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