Currently: 70 °F. Mostly cloudy. (Weather station: Saint Catharines Airport, Canada). See more current weatherPast Weather in St. Catharines — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
45
49
53
57
61
65
69
73
77
81
85
Sun, Sep 7
Lo:59
6 pm
Hi:61
10
Mon, Sep 8
12 am
N/A
0
Lo:52
6 am
Hi:64
4
Lo:63
12 pm
Hi:66
7
Lo:54
6 pm
Hi:64
4
Tue, Sep 9
12 am
N/A
0
Lo:46
6 am
Hi:72
2
Lo:70
12 pm
Hi:73
9
Lo:59
6 pm
Hi:70
6
Wed, Sep 10
12 am
N/A
0
Lo:63
6 am
Hi:73
7
Lo:72
12 pm
Hi:75
7
Lo:63
6 pm
Hi:73
4
Thu, Sep 11
12 am
N/A
0
Lo:54
6 am
Hi:70
4
Lo:70
12 pm
Hi:75
6
Lo:63
6 pm
Hi:75
2
Fri, Sep 12
12 am
N/A
0
Lo:55
6 am
Hi:70
4
Lo:70
12 pm
Hi:75
6
Lo:63
6 pm
Hi:72
3
Sat, Sep 13
12 am
N/A
0
Lo:59
6 am
Hi:72
4
Lo:72
12 pm
Hi:77
6
Lo:68
6 pm
Hi:75
8
Sun, Sep 14
12 am
N/A
0
Lo:57
6 am
Hi:75
5
Lo:75
12 pm
Hi:77
6
Lo:63
6 pm
Hi:75
4
Mon, Sep 15
12 am
N/A
0
Lo:54
6 am
Hi:73
6
Lo:72
12 pm
Hi:75
12
Lo:59
6 pm
Hi:72
6
Tue, Sep 16
12 am
N/A
0
6 am
N/A
0
Lo:75
12 pm
Hi:77
12
Lo:61
6 pm
Hi:75
5
Wed, Sep 17
12 am
N/A
0
Lo:48
6 am
Hi:73
4
Lo:70
12 pm
Hi:75
7
Lo:61
6 pm
Hi:70
2
Thu, Sep 18
12 am
N/A
0
Lo:55
6 am
Hi:79
4
Lo:73
12 pm
Hi:84
8
Lo:70
6 pm
Hi:73
8
Fri, Sep 19
12 am
N/A
0
Lo:63
6 am
Hi:64
10
Lo:64
12 pm
Hi:70
7
Lo:57
6 pm
Hi:70
5
Sat, Sep 20
12 am
N/A
0
Lo:46
6 am
Hi:68
9
Lo:64
12 pm
Hi:70
15
Lo:55
6 pm
Hi:64
10
Sun, Sep 21
12 am
N/A
0
Lo:50
6 am
Hi:81
7
Lo:77
12 pm
Hi:82
9
Lo:68
6 pm
Hi:77
7
Mon, Sep 22
12 am
N/A
0
Lo:70
6 am
Hi:73
15
Lo:73
12 pm
Hi:79
14
Lo:70
6 pm
Hi:75
11
Sunday, September 7, 2025, 6:00 pm — 12:00 am
61 / 59 °F
Passing clouds.
Humidity: 59%
Barometer: 30.16 "Hg
WSW
Wind: 9.943 mph
St. Catharines Temperature Yesterday
Maximum temperature yesterday: 82 °F (at 2:00 pm)
Minimum temperature yesterday: 50 °F (at 7:00 am)
Average temperature yesterday: 72 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 84 °F (Sep 18, 4:00 pm) | 100% (Sep 9, 7:00 am) | 30.35 "Hg (Sep 9, 7:00 am) |
| Low | 46 °F (Sep 9, 7:00 am) | 35% (Sep 19, 4:00 pm) | 29.87 "Hg (Sep 22, 5:00 pm) |
| Average | 68 °F | 66% | 30.14 "Hg |
| * Reported Sep 7 8:00 pm — Sep 22 8:00 pm, St. Catharines. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
St. Catharines Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 8:00 pm Mon, Sep 22 | | 70 °F | Overcast. | 12 mph | ↑ | 94% | 29.88 "Hg | 10 mi |
| 7:24 pm |  | 70 °F | Passing clouds. | 9 mph | ↑ | 94% | 29.88 "Hg | 10 mi |
| 7:05 pm |  | 72 °F | Rain showers. Broken clouds. | 13 mph | ↑ | 88% | 29.89 "Hg | 8 mi |
| 6:00 pm |  | 75 °F | Partly sunny. | 10 mph | ↑ | 74% | 29.88 "Hg | 15 mi |
| 5:00 pm | | 77 °F | Partly sunny. | 14 mph | ↑ | 65% | 29.87 "Hg | 15 mi |
| 4:00 pm | | 79 °F | Broken clouds. | 14 mph | ↑ | 65% | 29.88 "Hg | 15 mi |
| 3:00 pm | | 77 °F | Broken clouds. | 16 mph | ↑ | 69% | 29.90 "Hg | 15 mi |
| 2:00 pm | | 79 °F | Partly sunny. | 14 mph | ↑ | 65% | 29.90 "Hg | 15 mi |
| 1:00 pm | | 75 °F | Partly sunny. | 16 mph | ↑ | 78% | 29.93 "Hg | 15 mi |
| 12:00 pm |  | 73 °F | Overcast. | 16 mph | ↑ | 78% | 29.93 "Hg | 15 mi |
| 11:00 am | | 73 °F | Mostly cloudy. | 17 mph | ↑ | 78% | 29.94 "Hg | 15 mi |
| 10:00 am | | 73 °F | Broken clouds. | 14 mph | ↑ | 78% | 29.93 "Hg | 15 mi |
| 9:00 am | | 70 °F | Mostly cloudy. | 13 mph | ↑ | 88% | 29.93 "Hg | 15 mi |
| 9:00 pm Sun, Sep 21 |  | 70 °F | Thunderstorms. Passing clouds. | 7 mph | ↑ | 88% | 29.99 "Hg | 15 mi |
| Weather by CustomWeather, © 2025 | ||||||||