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Hamilton, Ontario

64°F
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64°
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Hamilton, 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
78°
53°
28
78°
56°
29
75°
53°
30
Some sun with a brief shower
74°
63°
1
A couple of afternoon showers
77°
58°
2
Occasional morning rain
66°
47°
3
Sunny to partly cloudy
61°
47°
4
Some clouds, then sunshine
66°
47°
5
Mostly sunny
58°
42°
6
Sun and some clouds
59°
46°
7
A couple of afternoon showers
62°
49°
8
Partly sunny
65°
48°
9
Increasing cloudiness
61°
46°
10
Partly sunny
63°
49°
11
Mostly sunny
62°
48°
12
A little afternoon rain
62°
48°
13
Mostly sunny
61°
42°
14
Rather cloudy
52°
40°
15
Mostly cloudy
53°
46°
16
Partly sunny
63°
47°
17
Times of clouds and sun
63°
48°
18
Cloudy
62°
48°
19
A little afternoon rain
62°
45°
20
Partly sunny
57°
43°
21
Sunshine and a few clouds
51°
41°
22
Mostly sunny
50°
44°
23
Mostly sunny
55°
46°
24
Mostly cloudy
60°
45°
25
Cloudy
60°
44°
26
Decreasing clouds
59°
37°
27
Partly sunny
48°
37°
28
Turning cloudy
52°
38°
29
Mostly sunny
53°
41°
30
Partly sunny
52°
41°
31
Increasing cloudiness
57°
44°

Temperature Graph

°F
80° 70° 60° 50° 40° Oct
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 Hamilton

Hamilton's October 2026 forecast shows daily high temperatures ranging from 48° to 77°, with overnight lows between 37° and 63°. The average high for October is 60° 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 Hamilton. See also: November | December | January.

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Weather Near Hamilton:

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