🇨🇦 Weather in St. Catharines
Map Overlays:
Hourly Forecast for St. Catharines
19:00
13°
100%
20:00
11°
100%
21:00
10°
0%
22:00
10°
0%
23:00
9°
0%
00:00
9°
0%
01:00
8°
0%
02:00
8°
0%
03:00
8°
0%
04:00
8°
0%
05:00
8°
0%
06:00
8°
0%
07:00
9°
0%
08:00
10°
0%
09:00
11°
85%
10:00
11°
100%
11:00
12°
0%
12:00
13°
0%
13:00
14°
0%
14:00
14°
0%
15:00
15°
0%
16:00
15°
0%
17:00
15°
0%
18:00
14°
0%
14-Day Forecast for St. Catharines
Sun, May 03
Patchy rain nearby
18° /
-2°
Mon, May 04
Patchy rain nearby
15° /
7°
Tue, May 05
Moderate rain
12° /
6°
Wed, May 06
Patchy rain nearby
10° /
6°
Thu, May 07
Patchy rain nearby
10° /
6°
Fri, May 08
Patchy rain nearby
10° /
5°
Sat, May 09
Patchy rain nearby
13° /
6°
Sun, May 10
Partly Cloudy
14° /
8°
Mon, May 11
Partly Cloudy
14° /
8°
Tue, May 12
Sunny
12° /
7°
Wed, May 13
Sunny
12° /
6°
Thu, May 14
Patchy rain nearby
15° /
8°
Fri, May 15
Patchy rain nearby
16° /
11°
Sat, May 16
Patchy rain nearby
13° /
8°
Additional Forecasts for St. Catharines
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 191.8 μg/m³
O₃ (Ozone) 98.0 μg/m³
NO₂ (Nitrogen Dioxide) 6.5 μg/m³
SO₂ (Sulphur Dioxide) 2.0 μg/m³
PM2.5 (Fine particles) 7.0 μg/m³
PM10 (Coarse particles) 8.0 μg/m³
