Currently: 81 °F. Partly sunny. (Weather station: Saint Catharines Airport, Canada). See more current weatherSt. Catharines Extended Forecast with high and low temperatures
°F
Time
Wind
(mph)
(mph)
Rain/Snow
()
()
Temp
(°F)
(°F)
58
61
64
67
70
73
76
79
82
85
88
91
Aug 10 – Aug 16
0.3
Lo:72
Wed, 13
Hi:85
7
Lo:68
Thu, 14
Hi:83
5
Lo:64
Fri, 15
Hi:87
5
0.02
Lo:64
Sat, 16
Hi:90
9
Aug 17 – Aug 23
0.19
Lo:71
Sun, 17
Hi:84
7
0.06
Lo:65
Mon, 18
Hi:79
18
0.19
Lo:69
Tue, 19
Hi:86
7
0.05
Lo:64
Wed, 20
Hi:73
15
Lo:62
Thu, 21
Hi:70
14
Lo:59
Fri, 22
Hi:73
5
Lo:59
Sat, 23
Hi:74
14
Aug 24 – Aug 30
Lo:61
Sun, 24
Hi:76
11
Lo:62
Mon, 25
Hi:76
8
0.05
Lo:62
Tue, 26
Hi:76
5
Lo:63
Wed, 27
Hi:78
21
Wed, Aug 13
85 / 72 °F
Thundershowers. Cloudy.
Feels Like: 88 °F
Humidity: 61%
Precipitation: Rain: 0.3 Snow: 0
Precipitation Chance: 82%
SSW
Wind: 7 mph
2 Week Extended Forecast in St. Catharines, Ontario, Canada
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Wed Aug 13 |  | 85 / 72 °F | Thundershowers. Cloudy. | 88 °F | 7 mph | ↑ | 61% | 82% | 0.30" | 3 (Moderate) | 6:20 am | 8:22 pm |
| Thu Aug 14 |  | 83 / 68 °F | Mostly sunny. | 82 °F | 5 mph | ↑ | 51% | 6% | 0.00" | 5 (Moderate) | 6:21 am | 8:20 pm |
| Fri Aug 15 |  | 87 / 64 °F | Sunny. | 86 °F | 5 mph | ↑ | 44% | 0% | 0.00" | 5 (Moderate) | 6:22 am | 8:19 pm |
| Sat Aug 16 |  | 90 / 64 °F | Afternoon clouds. | 90 °F | 9 mph | ↑ | 42% | 14% | 0.02" | 3 (Moderate) | 6:24 am | 8:17 pm |
| Sun Aug 17 | | 84 / 71 °F | Thundershowers. Mostly cloudy. | 85 °F | 7 mph | ↑ | 70% | 52% | 0.19" | 3 (Moderate) | 6:25 am | 8:15 pm |
| Mon Aug 18 |  | 79 / 65 °F | Isolated tstorms late. Mostly cloudy. | 79 °F | 18 mph | ↑ | 55% | 19% | 0.06" | 3 (Moderate) | 6:26 am | 8:14 pm |
| Tue Aug 19 | | 86 / 69 °F | Thundershowers. Cloudy. | 90 °F | 7 mph | ↑ | 62% | 54% | 0.19" | 3 (Moderate) | 6:27 am | 8:12 pm |
| Wed Aug 20 |  | 73 / 64 °F | Showers early. Decreasing cloudiness. | 67 °F | 15 mph | ↑ | 77% | 15% | 0.05" | 3 (Moderate) | 6:28 am | 8:11 pm |
| Thu Aug 21 | | 70 / 62 °F | Sunny. | 69 °F | 14 mph | ↑ | 40% | 3% | 0.00" | 5 (Moderate) | 6:29 am | 8:09 pm |
| Fri Aug 22 | | 73 / 59 °F | Partly cloudy. | 77 °F | 5 mph | ↑ | 34% | 3% | 0.00" | 5 (Moderate) | 6:30 am | 8:08 pm |
| Sat Aug 23 |  | 74 / 59 °F | Overcast. | 77 °F | 14 mph | ↑ | 41% | 6% | 0.00" | 3 (Moderate) | 6:31 am | 8:06 pm |
| Sun Aug 24 | | 76 / 61 °F | Scattered clouds. | 78 °F | 11 mph | ↑ | 45% | 6% | 0.00" | 5 (Moderate) | 6:32 am | 8:04 pm |
| Mon Aug 25 | | 76 / 62 °F | Mostly sunny. | 78 °F | 8 mph | ↑ | 54% | 5% | 0.00" | 5 (Moderate) | 6:33 am | 8:03 pm |
| Tue Aug 26 | | 76 / 62 °F | Showers late. Cloudy. | 78 °F | 5 mph | ↑ | 63% | 46% | 0.05" | 3 (Moderate) | 6:35 am | 8:01 pm |
| Wed Aug 27 | | 78 / 63 °F | Morning clouds. | 78 °F | 21 mph | ↑ | 46% | 5% | 0.00" | 5 (Moderate) | 6:36 am | 7:59 pm |
| * Updated Wednesday, August 13, 2025 11:24:08 am St. Catharines time - Weather by CustomWeather, © 2025 | ||||||||||||