Yellow warningSmall Craft · in effect until 3:00 PMDetails
Current weather
6:00 AM4°C
Wind chill -4
Mainly Clear
High 10° · Low 4° · 40%
- Wind
- SE 9 km/h
- Wind gusts
- 41 km/h
- Humidity
- 89%
- Air quality (AQHI)
- 1.1 · Low risk
- UV index
- 0 · Low
More details
- Dew point
- 2°C
- Pressure
- 101.3 kPa ↗ rising
- Visibility
- 10 km
- Sunrise
- 6:59 AM
- Sunset
- 5:01 PM
- Daylight
- 10 h 2 min
Observed at St. Catharines / Niagara District Airport, 6:00 AM EST · Environment and Climate Change Canada
Hourly forecast
Hourly →- Now7°20%
- 7 AM1°40%
- 8 AM3°40%
- 9 AM5°40%
- 10 AM7°40%
- 11 AM8°40%
- 12 PM8°40%
- 1 PM9°40%
- 2 PM9°40%
- 3 PM10°40%
- 4 PM10°40%
- 5 PM10°40%
- 6 PM9°40%
- 7 PM9°40%
- 8 PM9°40%
- 9 PM8°40%
- 10 PM8°20%
- 11 PM8°20%
- Sun
- 12 AM8°20%
- 1 AM8°20%
- 2 AM8°20%
- 3 AM7°20%
- 4 AM7°20%
- 5 AM6°20%
14-day forecast
Full 14-day →TodayNov 710°4°Chance of showersChance of showers40%
Day
Mainly cloudy with 40 percent chance of rain showers. Risk of freezing rain early this morning. Wind becoming northwest 20 km/h late this afternoon. High 10. UV index 2 or low.
- Wind
- NW 20 km/h
- Precipitation
- 40% · 0.4 mm
- UV index (max)
- 2 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy. 40 percent chance of showers this evening. Becoming partly cloudy after midnight. Wind west 20 km/h becoming light late this evening. Low plus 4.
- Low
- 4°
- Wind
- NW 20 km/h
- Precipitation
- 40%
Sunrise6:59 AM
Sunset5:01 PM
Daylight10 h 2 min
Normal10° / 2°
SunNov 813°6°Chance of showersChance of showers40%
Day
Increasing cloudiness. 40 percent chance of showers late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 then increasing to 40 gusting to 60 late in the morning. High 13. UV index 2 or low.
- Wind
- SW 40 km/h
- Wind gusts
- 60 km/h
- Precipitation
- 40% · 0.2 mm
- UV index (max)
- 2 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy periods with 40 percent chance of showers. Windy. Low 6.
- Low
- 6°
- Wind
- W 30 km/h
- Precipitation
- 40%
Sunrise6:59 AM
Sunset5:01 PM
Daylight10 h 2 min
MonNov 910°8°A mix of sun and cloudCloudy periods43%
Day
A mix of sun and cloud. High 10.
- Precipitation
- 43% · 0.6 mm
- UV index (max)
- 3 Moderate
Night
Cloudy periods. Low 8.
- Low
- 8°
Sunrise7:00 AM
Sunset5:00 PM
Daylight10 h 0 min
TueNov 1012°5°A mix of sun and cloudCloudy periods11%
Day
A mix of sun and cloud. High 12.
- Precipitation
- 11% · 0 mm
- UV index (max)
- 4 Moderate
Night
Cloudy periods. Low plus 5.
- Low
- 5°
Sunrise7:01 AM
Sunset4:59 PM
Daylight9 h 57 min
WedNov 118°4°A mix of sun and cloudCloudy periods47%
Day
A mix of sun and cloud. High 8.
- Precipitation
- 47% · 0.7 mm
- UV index (max)
- 3 Moderate
Night
Cloudy periods. Low plus 4.
- Low
- 4°
Sunrise7:03 AM
Sunset4:58 PM
Daylight9 h 55 min
ThuNov 127°3°CloudyCloudy periods78%
Day
Cloudy. High 7.
- Precipitation
- 78% · 3 mm
- UV index (max)
- 2 Low
Night
Cloudy periods. Low plus 3.
- Low
- 3°
Sunrise7:04 AM
Sunset4:57 PM
Daylight9 h 53 min
FriNov 137°4°A mix of sun and cloud90%
Day
A mix of sun and cloud. High 7.
- Precipitation
- 90% · 15 mm
- UV index (max)
- 1 Low
Night
Low 4.
- Low
- 4°
Sunrise7:05 AM
Sunset4:56 PM
Daylight9 h 50 min
Days 8–14 · trend, lower confidence
SatNov 145°4°Heavy snowNight low 4°85%
Day
Heavy snow. High 5.
- Wind
- NE 34 km/h
- Wind gusts
- 48 km/h
- Precipitation
- 85% · 6 mm
- UV index (max)
- 1 Low
Night
Low 4.
- Low
- 4°
Sunrise7:06 AM
Sunset4:55 PM
Daylight9 h 48 min
SourceExtended outlook
SunNov 158°5°ShowersNight low 5°57%
Day
Showers. High 8.
- Wind
- N 25 km/h
- Wind gusts
- 39 km/h
- Precipitation
- 57% · 2 mm
- UV index (max)
- 2 Low
Night
Low 5.
- Low
- 5°
Sunrise7:08 AM
Sunset4:54 PM
Daylight9 h 46 min
SourceExtended outlook
MonNov 166°5°Partly cloudyNight low 5°12%
Day
Partly cloudy. High 6.
- Wind
- N 19 km/h
- Wind gusts
- 32 km/h
- Precipitation
- 12% · 0 mm
- UV index (max)
- 3 Moderate
Night
Low 5.
- Low
- 5°
Sunrise7:09 AM
Sunset4:53 PM
Daylight9 h 44 min
SourceExtended outlook
TueNov 178°4°Partly cloudyNight low 4°12%
Day
Partly cloudy. High 8.
- Wind
- S 13 km/h
- Wind gusts
- 27 km/h
- Precipitation
- 12% · 0 mm
- UV index (max)
- 3 Moderate
Night
Low 4.
- Low
- 4°
Sunrise7:10 AM
Sunset4:52 PM
Daylight9 h 42 min
SourceExtended outlook
WedNov 1811°7°Partly cloudyNight low 7°76%
Day
Partly cloudy. High 11.
- Wind
- SW 20 km/h
- Wind gusts
- 35 km/h
- Precipitation
- 76% · 3 mm
- UV index (max)
- 4 Moderate
Night
Low 7.
- Low
- 7°
Sunrise7:12 AM
Sunset4:52 PM
Daylight9 h 40 min
SourceExtended outlook
ThuNov 199°6°ShowersNight low 6°72%
Day
Showers. High 9.
- Wind
- W 16 km/h
- Wind gusts
- 31 km/h
- Precipitation
- 72% · 3 mm
- UV index (max)
- 2 Low
Night
Low 6.
- Low
- 6°
Sunrise7:13 AM
Sunset4:51 PM
Daylight9 h 37 min
SourceExtended outlook
FriNov 2010°7°Partly cloudyNight low 7°28%
Day
Partly cloudy. High 10.
- Wind
- SW 26 km/h
- Wind gusts
- 48 km/h
- Precipitation
- 28% · 0.1 mm
- UV index (max)
- 3 Moderate
Night
Low 7.
- Low
- 7°
Sunrise7:14 AM
Sunset4:50 PM
Daylight9 h 35 min
SourceExtended outlook
Sun & Moon
Moon calendar →Sunrise6:59 AM
Sunset5:01 PM
Daylight10 h 2 min
MoonNew Moon3% lit · rise 5:21 AM · set 3:49 PM
Pollen today · Thorold
TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Sun: weeds low · Mon: weeds low · Tue: weeds low
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.
Climate · monthly normals
Full climate →| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High | 0° | 1° | 6° | 13° | 19° | 25° | 27° | 26° | 22° | 15° | 9° | 3° |
| Low | -8° | -7° | -4° | 2° | 8° | 14° | 17° | 16° | 12° | 6° | 1° | -4° |
| Precip | 76 mm | 62 mm | 62 mm | 72 mm | 87 mm | 81 mm | 79 mm | 79 mm | 98 mm | 80 mm | 92 mm | 81 mm |
ECCC
Activities today
Derived from the forecastLaundry dayPoorLine-drying weather
GrillingFairFire up the grill
RunningGreatLace up outside
PatioPoorDinner outdoors
Forecast: Environment and Climate Change Canada (St. Catharines - Grimsby - Northern Niagara Region), issued 5:00 AM · Days 8–14: WeatherAPI.com · weather.gc.ca · 43.1168°N, 79.1996°W · Elevation 178 m · Population 18,801 · Time zone America/Toronto