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Ajax, Ontario

55°F
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Ajax

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55°
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Ajax, 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

October

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
27
77°
53°
28
69°
57°
29
68°
53°
30
69°
53°
1
70°
62°
2
Morning rain; mostly cloudy
69°
46°
3
Sunny to partly cloudy
63°
53°
4
Clouds yielding to sun
67°
48°
5
Mostly sunny and breezy
58°
39°
6
Sunny much of the time
58°
45°
7
A couple of afternoon showers
66°
51°
8
Partly sunny, showers around
68°
51°
9
Overcast with afternoon rain
65°
49°
10
Abundant sunshine
64°
52°
11
Uninterrupted sunshine
63°
49°
12
Sunny
60°
48°
13
Mostly cloudy, a little rain
59°
47°
14
Mostly sunny
61°
46°
15
Mainly cloudy
60°
42°
16
Sunshine and some clouds
62°
48°
17
Sunny to partly cloudy
62°
47°
18
Cloudy
61°
48°
19
Thunderstorms in the morning
60°
46°
20
Mostly sunny
58°
43°
21
Sunshine and a few clouds
52°
42°
22
Decreasing clouds
50°
46°
23
Mostly sunny and not as cool
56°
46°
24
Partly sunny
59°
45°
25
Cloudy with a shower
56°
43°
26
Decreasing clouds
58°
38°
27
Mostly cloudy
47°
37°
28
Times of clouds and sun
52°
39°
29
Sunny
53°
41°
30
Partly sunny
51°
42°
31
Increasing cloudiness
56°
44°

Temperature Graph

°F
70° 62° 54° 46° 38° Oct
Today 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

October Weather in Ajax

Ajax's October 2026 forecast shows daily high temperatures ranging from 47° to 69°, with overnight lows between 37° and 53°. The average high for October is 59° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Ajax. See also: November | December | January.

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World North America Canada Ontario Ajax

Weather Near Ajax:

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