🇨🇦 Weather in St. Catharines
Map Overlays:
Hourly Forecast for St. Catharines
01:00
8°
0%
02:00
8°
0%
03:00
8°
0%
04:00
7°
0%
05:00
7°
0%
06:00
8°
0%
07:00
9°
0%
08:00
10°
0%
09:00
12°
0%
10:00
15°
0%
11:00
17°
0%
12:00
15°
0%
13:00
15°
0%
14:00
15°
0%
15:00
15°
0%
16:00
15°
0%
17:00
15°
0%
18:00
15°
0%
19:00
14°
0%
20:00
13°
0%
21:00
12°
0%
22:00
12°
60%
23:00
12°
84%
00:00
12°
71%
14-Day Forecast for St. Catharines
Mon, May 04
Sunny
19° /
7°
Tue, May 05
Moderate rain
12° /
7°
Wed, May 06
Patchy rain nearby
9° /
7°
Thu, May 07
Patchy rain nearby
9° /
6°
Fri, May 08
Patchy rain nearby
10° /
4°
Sat, May 09
Partly Cloudy
11° /
5°
Sun, May 10
Patchy rain nearby
14° /
6°
Mon, May 11
Patchy rain nearby
12° /
7°
Tue, May 12
Sunny
12° /
5°
Wed, May 13
Partly Cloudy
13° /
7°
Thu, May 14
Patchy rain nearby
15° /
10°
Fri, May 15
Patchy rain nearby
17° /
10°
Sat, May 16
Patchy rain nearby
12° /
9°
Sun, May 17
Patchy rain nearby
10° /
8°
Additional Forecasts for St. Catharines
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 176.8 μg/m³
O₃ (Ozone) 94.0 μg/m³
NO₂ (Nitrogen Dioxide) 4.8 μg/m³
SO₂ (Sulphur Dioxide) 3.1 μg/m³
PM2.5 (Fine particles) 16.9 μg/m³
PM10 (Coarse particles) 19.4 μg/m³
