Ontario, Canada
20:248:24 PM
Tuesday, 21 July
Mainly Clear
+21°C+70°F
Feels like
+23°C+74°F
+26°C+79°F
+20°C+68°F
Max.
Min.
Weather Details
Wind
1.3m/s
3mph
Clouds
100
%
Pressure
1008hPa
29.77inHg
Humidity
89
%
Visibility
26.6km
16.5mi
UV Index
7
Sunrise
5:56 AM
05:56
Sunset
8:50 PM
20:50
Air Quality Index
Good
PM2.5
6
μg/m³
PM10
7
μg/m³
Ozone
89.0
μg/m³
NO₂
10.3
μg/m³
CO
309.0
μg/m³
SO₂
2.2
μg/m³
Dust
0.0
μg/m³
AOD
0.270
unit
Today's Weather in St. Catharines
| Night | Morning | Afternoon | Evening | |
|---|---|---|---|---|
| Forecast |
|
|
|
|
| Temp | +22°C +71°F | +24°C +75°F | +22°C +72°F | +21°C +70°F |
| Conditions | Clear | Overcast | Rainy | Mainly Clear |
| Feels like | +21°C +70°F | +24°C +76°F | +23°C +73°F | +24°C +74°F |
| Wind speed | 3.8 m/s 9 mph | 5.1 m/s 11 mph | 5.4 m/s 12 mph | 2.2 m/s 5 mph |
| Wind direction |
S
|
S
|
SW
|
SW
|
| Humidity | 65% | 71% | 90% | 90% |
| Dew point | +15°C +59°F | +18°C +65°F | +20°C +68°F | +19°C +67°F |
| Visibility | 26.5 km 16.4 mi | 22.3 km 13.9 mi | 13.6 km 8.4 mi | 14.5 km 9.0 mi |
| Chance of precipitation | 0% | 100% | 100% | 98% |
St. Catharines is currently experiencing Mainly Clear with temperatures around 21°C, feeling like 23°C due to high humidity. Rain is expected today, with 22.9 mm of precipitation forecasted. Heavy cloud cover at 100% is blocking most sunlight today. UV index is high at 7 — sun protection is recommended. Humidity is at 89% and atmospheric pressure stands at 1002 hPa.
Hourly Forecast
12:00 AM
00:00
+22°C
+71°F
64%
3.7 m/s8 mph
100%
Overcast
1:00 AM
01:00
+22°C
+71°F
67%
3 m/s7 mph
94%
Overcast
2:00 AM
02:00
+22°C
+71°F
65%
3.1 m/s7 mph
0%
Clear
3:00 AM
03:00
+21°C
+70°F
68%
3.8 m/s9 mph
0%
Clear
4:00 AM
04:00
+22°C
+71°F
64%
4.6 m/s10 mph
0%
Clear
5:00 AM
05:00
+23°C
+73°F
59%
4.9 m/s11 mph
51%
Partly Cloudy
6:00 AM
06:00
+23°C
+73°F
66%
3.7 m/s8 mph
98%
Overcast
7:00 AM
07:00
+22°C
+72°F
80%
1.1 m/s3 mph
99%
Overcast
8:00 AM
08:00
+24°C
+75°F
72%
5 m/s11 mph
100%
Overcast
9:00 AM
09:00
+26°C
+79°F
63%
6.6 m/s15 mph
73%
Partly Cloudy
10:00 AM
10:00
+25°C
+76°F
70%
0.2 mm0.01 in
6.2 m/s14 mph
97%
Rainy
11:00 AM
11:00
+24°C
+76°F
77%
8.1 m/s18 mph
100%
Overcast
12:00 PM
12:00
+24°C
+75°F
89%
7.8 m/s18 mph
100%
Overcast
1:00 PM
13:00
+24°C
+76°F
81%
7.5 m/s17 mph
100%
Overcast
2:00 PM
14:00
+22°C
+72°F
78%
3.9 mm0.15 in
5.2 m/s12 mph
100%
Rainy
3:00 PM
15:00
+20°C
+68°F
96%
16.1 mm0.63 in
3.5 m/s8 mph
100%
Rainy
4:00 PM
16:00
+21°C
+69°F
96%
1.9 mm0.07 in
4.4 m/s10 mph
100%
Rainy
5:00 PM
17:00
+21°C
+70°F
97%
0.5 mm0.02 in
4.1 m/s9 mph
100%
Rainy
6:00 PM
18:00
+22°C
+72°F
91%
0.3 mm0.01 in
2.8 m/s6 mph
99%
Rainy
7:00 PM
19:00
+22°C
+71°F
88%
1.9 m/s4 mph
79%
Partly Cloudy
8:00 PM
20:00
+21°C
+71°F
89%
1.8 m/s4 mph
23%
Mainly Clear
9:00 PM
21:00
+21°C
+69°F
89%
1.3 m/s3 mph
98%
Overcast
10:00 PM
22:00
+20°C
+69°F
92%
2.9 m/s6 mph
87%
Overcast
11:00 PM
23:00
+21°C
+69°F
93%
2.5 m/s6 mph
100%
Overcast
Precipitation
Today
Tomorrow
12:00 AM
00:00
12:00 AM
00:00
3:00 AM
03:00
6:00 AM
06:00
6:00 AM
06:00
9:00 AM
09:00
12:00 PM
12:00
12:00 PM
12:00
3:00 PM
15:00
6:00 PM
18:00
6:00 PM
18:00
9:00 PM
21:00
12:00 AM
00:00
12:00 AM
00:00
3:00 AM
03:00
6:00 AM
06:00
6:00 AM
06:00
9:00 AM
09:00
12:00 PM
12:00
12:00 PM
12:00
3:00 PM
15:00
6:00 PM
18:00
6:00 PM
18:00
9:00 PM
21:00
11:00 PM
23:00
11:00 PM
23:00