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Ancaster Heights, Ontario

75°F
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Ancaster Heights

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75°
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Ancaster Heights, 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
Cloudy, thunderstorms; humid
76°
52°
31
Partly sunny and less humid
73°
50°
1
Mostly sunny
70°
51°
2
Mostly sunny
70°
49°
3
Mostly cloudy
71°
49°
4
Mostly sunny
71°
50°
5
Clouds and sun
70°
50°
6
Sunshine and some clouds
70°
53°
7
Times of clouds and sun
71°
57°
8
Periods of rain
70°
50°
9
Cloudy, a shower and t-storm
70°
50°
10
Couple of thunderstorms
71°
49°
11
A couple of thunderstorms
69°
50°
12
Some sun, a t-storm or two
68°
51°
13
A shower and thunderstorm
69°
52°
14
A shower and thunderstorm
68°
50°
15
Mainly cloudy
68°
52°
16
Clouds and sun
69°
47°
17
Mostly sunny
68°
46°
18
Plenty of sunshine
68°
47°
19
Clouds and sun
66°
54°
20
Mostly cloudy
74°
52°
21
A couple of showers
65°
46°
22
A couple of showers
64°
43°
23
Hist. Avg.
68°
48°
24
Hist. Avg.
68°
48°
25
Hist. Avg.
67°
47°
26
Hist. Avg.
67°
47°
27
Hist. Avg.
66°
47°
28
Hist. Avg.
66°
46°
29
Hist. Avg.
66°
46°
30
Hist. Avg.
65°
46°
1
Hist. Avg.
65°
45°
2
Hist. Avg.
64°
45°
3
Hist. Avg.
64°
45°

Temperature Graph

°F
80° 72° 64° 56° 48° 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
*Temporarily Unavailable

September Weather in Ancaster Heights

Ancaster Heights's September 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 43° and 57°. The average high for September is 70° 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 September weather will actually feel in Ancaster Heights. See also: October | November | December.

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Weather Near Ancaster Heights:

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