St. Catharines Weather
4°
Clear sky
St. Catharines, Ontario, Canada
Feels like 1° · Local time 02:30
9° cooler than this time yesterday
Hour by hour
No rain expected in the next 24 hours.
Now
5°
💧1%
3 AM
4°
💧1%
4 AM
4°
💧1%
5 AM
5°
💧3%
6 AM
6°
💧8%
7 AM
6°
💧12%
8 AM
6°
💧7%
9 AM
7°
💧1%
10 AM
8°
💧1%
11 AM
10°
💧1%
12 PM
10°
💧2%
1 PM
9°
💧3%
2 PM
10°
💧5%
3 PM
10°
💧4%
4 PM
10°
💧6%
5 PM
9°
💧7%
6 PM
9°
💧4%
7 PM
10°
💧8%
8 PM
10°
💧4%
9 PM
10°
💧3%
10 PM
9°
💧3%
11 PM
9°
💧3%
12 AM
9°
💧2%
1 AM
9°
💧2%
Rain radar
Loading radar…
St. Catharines 16-day weather forecast
Today
Light drizzle · 💧12%
4°10°
Sunday, Nov 8
Overcast · 💧43%
5°13°
Monday, Nov 9
Overcast · 💧43%
8°11°
Tuesday, Nov 10
Overcast · 💧4%
8°15°
Wednesday, Nov 11
Light drizzle · 💧13%
8°14°
Thursday, Nov 12
Light drizzle · 💧14%
5°8°
Friday, Nov 13
Snow showers · 💧17%
1°5°
Saturday, Nov 14
Snow showers · 💧15%
2°4°
Sunday, Nov 15
Fog · 💧8%
2°8°
Monday, Nov 16
Partly cloudy · 💧6%
3°6°
Tuesday, Nov 17
Overcast · 💧6%
2°9°
Wednesday, Nov 18
Light rain · 💧13%
8°14°
Thursday, Nov 19
Light rain · 💧16%
4°11°
Friday, Nov 20
Overcast · 💧17%
3°11°
Saturday, Nov 21
Light drizzle · 💧23%
7°12°
Sunday, Nov 22
— · 💧33%
—°—°
Today's details
- Feels like
- 1°
- Humidity
- 70%
- Dew point
- -1°
- Wind
- 2 km/h S
- Gusts
- 13 km/h
- Pressure
- 1014 hPa · steady
- UV index now
- 0 · max 3
- Visibility
- 23 km
- Sunrise / sunset
- 06:59 / 17:01
- Moon
- Waning Crescent · 6% lit
Hour-by-hour detail — next 48 hours
| Time | Temp | Rain | Amount | Humidity | Wind | |
|---|---|---|---|---|---|---|
| Now | 5° | 1% | 0.0 mm | 69% | 3 km/h | |
| 3 AM | 4° | 1% | 0.0 mm | 71% | 6 km/h | |
| 4 AM | 4° | 1% | 0.0 mm | 74% | 7 km/h | |
| 5 AM | 5° | 3% | 0.0 mm | 79% | 6 km/h | |
| 6 AM | 6° | 8% | 0.0 mm | 78% | 5 km/h | |
| 7 AM | 6° | 12% | 0.0 mm | 78% | 4 km/h | |
| 8 AM | 6° | 7% | 0.0 mm | 75% | 4 km/h | |
| 9 AM | 7° | 1% | 0.0 mm | 78% | 4 km/h | |
| 10 AM | 8° | 1% | 0.0 mm | 74% | 5 km/h | |
| 11 AM | 10° | 1% | 0.0 mm | 70% | 7 km/h | |
| 12 PM | 10° | 2% | 0.0 mm | 75% | 14 km/h | |
| 1 PM | 9° | 3% | 0.0 mm | 73% | 17 km/h | |
| 2 PM | 10° | 5% | 0.0 mm | 67% | 11 km/h | |
| 3 PM | 10° | 4% | 0.0 mm | 60% | 12 km/h | |
| 4 PM | 10° | 6% | 0.0 mm | 69% | 8 km/h | |
| 5 PM | 9° | 7% | 0.2 mm | 90% | 11 km/h | |
| 6 PM | 9° | 4% | 0.0 mm | 86% | 13 km/h | |
| 7 PM | 10° | 8% | 0.0 mm | 87% | 11 km/h | |
| 8 PM | 10° | 4% | 0.0 mm | 83% | 18 km/h | |
| 9 PM | 10° | 3% | 0.0 mm | 83% | 17 km/h | |
| 10 PM | 9° | 3% | 0.0 mm | 82% | 15 km/h | |
| 11 PM | 9° | 3% | 0.0 mm | 81% | 15 km/h | |
| 12 AM 11-08 | 9° | 2% | 0.0 mm | 82% | 16 km/h | |
| 1 AM 11-08 | 9° | 2% | 0.0 mm | 81% | 15 km/h | |
| 2 AM 11-08 | 8° | 1% | 0.0 mm | 80% | 18 km/h | |
| 3 AM 11-08 | 8° | 1% | 0.0 mm | 78% | 16 km/h | |
| 4 AM 11-08 | 7° | 0% | 0.0 mm | 78% | 17 km/h | |
| 5 AM 11-08 | 6° | 0% | 0.0 mm | 67% | 15 km/h | |
| 6 AM 11-08 | 5° | 0% | 0.0 mm | 72% | 16 km/h | |
| 7 AM 11-08 | 5° | 0% | 0.0 mm | 75% | 13 km/h | |
| 8 AM 11-08 | 5° | 0% | 0.0 mm | 72% | 16 km/h | |
| 9 AM 11-08 | 8° | 0% | 0.0 mm | 66% | 20 km/h | |
| 10 AM 11-08 | 10° | 0% | 0.0 mm | 57% | 26 km/h | |
| 11 AM 11-08 | 11° | 0% | 0.0 mm | 50% | 28 km/h | |
| 12 PM 11-08 | 13° | 2% | 0.0 mm | 50% | 32 km/h | |
| 1 PM 11-08 | 13° | 2% | 0.0 mm | 51% | 34 km/h | |
| 2 PM 11-08 | 12° | 2% | 0.0 mm | 54% | 32 km/h | |
| 3 PM 11-08 | 11° | 2% | 0.0 mm | 62% | 26 km/h | |
| 4 PM 11-08 | 9° | 2% | 0.0 mm | 72% | 25 km/h | |
| 5 PM 11-08 | 9° | 2% | 0.0 mm | 68% | 23 km/h | |
| 6 PM 11-08 | 10° | 2% | 0.0 mm | 61% | 23 km/h | |
| 7 PM 11-08 | 11° | 2% | 0.0 mm | 57% | 25 km/h | |
| 8 PM 11-08 | 13° | 43% | 0.0 mm | 54% | 27 km/h | |
| 9 PM 11-08 | 12° | 43% | 0.0 mm | 61% | 25 km/h | |
| 10 PM 11-08 | 11° | 43% | 0.0 mm | 68% | 25 km/h | |
| 11 PM 11-08 | 11° | 43% | 0.0 mm | 66% | 25 km/h | |
| 12 AM 11-09 | 10° | 43% | 0.0 mm | 70% | 24 km/h | |
| 1 AM 11-09 | 9° | 43% | 0.0 mm | 70% | 23 km/h |
Air quality in St. Catharines
25
US AQI — Good
PM2.5 2.9 µg/m³ · PM10 2.9 µg/m³ · O₃ 42 µg/m³
Ocean & waves
- Wave height
- 0.2 m
- Wave period
- 3 s
- Wave direction
- W
Frequently asked questions
What is the weather in St. Catharines today?
Clear sky, currently 4° (feels like 1°), with a high of 10° and a low of 4°. No rain expected in the next 24 hours.
What is the air quality in St. Catharines?
The air quality in St. Catharines is good (US AQI 25). PM2.5 is 2.9 µg/m³ and PM10 is 2.9 µg/m³.