Yellow warningSmall Craft · in effect until 10:00 PM · +1 moreDetails
Current weather
6:00 PM15°C
Partly Cloudy
High 17° · Low 11° · 40%
- Wind
- SW 19 km/h
- Wind gusts
- 35 km/h
- Humidity
- 65%
- Air quality (AQHI)
- 2 · Low risk
- UV index
- 0 · Low
More details
- Dew point
- 8°C
- Pressure
- 100.9 kPa ↗ rising
- Visibility
- 10 km
- Sunrise
- 6:56 AM
- Sunset
- 5:03 PM
- Daylight
- 10 h 7 min
Observed at St. Catharines / Niagara District Airport, 6:00 PM EST · Environment and Climate Change Canada
Hourly forecast
Hourly →- Now15°9%
- 7 PM14°0%
- 8 PM14°40%
- 9 PM14°40%
- 10 PM14°40%
- 11 PM14°40%
- Fri
- 12 AM13°40%
- 1 AM13°40%
- 2 AM13°40%
- 3 AM12°40%
- 4 AM12°40%
- 5 AM12°40%
- 6 AM11°80%
- 7 AM11°80%
- 8 AM11°80%
- 9 AM12°80%
- 10 AM12°80%
- 11 AM12°80%
- 12 PM13°0%
- 1 PM13°0%
- 2 PM13°0%
- 3 PM13°0%
- 4 PM13°0%
- 5 PM12°0%
14-day forecast
Full 14-day →TonightNov 517°11°ShowersChance of showers40%
Day
- Wind
- SW 40 km/h
- Wind gusts
- 60 km/h
- Precipitation
- 40% · 5 mm
- UV index (max)
- 2 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Partly cloudy. Becoming cloudy this evening with 40 percent chance of showers this evening and overnight. Wind southwest 40 km/h gusting to 60 diminishing to 20 gusting to 40 early this evening then becoming light overnight. Low 11.
- Low
- 11°
- Wind
- SW 40 km/h
- Precipitation
- 40%
Sunrise6:56 AM
Sunset5:03 PM
Daylight10 h 7 min
Normal10° / 3°
FriNov 613°5°A few showersChance of showers40%
Day
A few showers ending near noon then cloudy. High 13. UV index 2 or low.
- Wind
- W 15 km/h
- Precipitation
- 40% · 4 mm
- UV index (max)
- 2 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy. 40 percent chance of showers in the evening. A few showers beginning before morning. Low plus 5.
- Low
- 5°
- Wind
- W 15 km/h
- Precipitation
- 40%
Sunrise6:56 AM
Sunset5:04 PM
Daylight10 h 7 min
SatNov 78°6°Chance of showersChance of showers40%
Day
Cloudy with 40 percent chance of showers. High 8.
- Precipitation
- 40% · 2 mm
- UV index (max)
- 0 Low
Night
Cloudy with 30 percent chance of showers. Low 6.
- Low
- 6°
- Precipitation
- 30%
Sunrise6:58 AM
Sunset5:02 PM
Daylight10 h 4 min
SunNov 810°6°A mix of sun and cloudChance of showers40%
Day
A mix of sun and cloud. Windy. High 10.
- Wind
- W 30 km/h
- Wind gusts
- 50 km/h
- Precipitation
- 40% · 0.2 mm
- UV index (max)
- 2 Low
Night
Cloudy periods with 40 percent chance of showers. Low 6.
- Low
- 6°
- Precipitation
- 40%
Sunrise6:59 AM
Sunset5:01 PM
Daylight10 h 2 min
MonNov 910°8°A mix of sun and cloudCloudy periods21%
Day
A mix of sun and cloud. High 10.
- Precipitation
- 21% · 0.1 mm
- UV index (max)
- 4 Moderate
Night
Cloudy periods. Low 8.
- Low
- 8°
Sunrise7:00 AM
Sunset5:00 PM
Daylight10 h 0 min
TueNov 1012°5°Chance of showersChance of showers30%
Day
A mix of sun and cloud with 30 percent chance of showers. High 12.
- Precipitation
- 30% · 0 mm
- UV index (max)
- 4 Moderate
Night
Cloudy periods with 30 percent chance of showers. Low plus 5.
- Low
- 5°
- Precipitation
- 30%
Sunrise7:01 AM
Sunset4:59 PM
Daylight9 h 57 min
WedNov 118°8°A mix of sun and cloud31%
Day
A mix of sun and cloud. High 8.
- Precipitation
- 31% · 0.2 mm
- UV index (max)
- 3 Moderate
Night
Low 8.
- Low
- 8°
Sunrise7:03 AM
Sunset4:58 PM
Daylight9 h 55 min
Days 8–14 · trend, lower confidence
ThuNov 128°5°ShowersNight low 5°74%
Day
Showers. High 8.
- Wind
- NE 24 km/h
- Wind gusts
- 40 km/h
- Precipitation
- 74% · 3 mm
- UV index (max)
- 3 Moderate
Night
Low 5.
- Low
- 5°
Sunrise7:04 AM
Sunset4:57 PM
Daylight9 h 53 min
SourceExtended outlook
FriNov 135°4°Heavy rainNight low 4°79%
Day
Heavy rain. High 5.
- Wind
- NE 26 km/h
- Wind gusts
- 44 km/h
- Precipitation
- 79% · 8 mm
- UV index (max)
- 1 Low
Night
Low 4.
- Low
- 4°
Sunrise7:05 AM
Sunset4:56 PM
Daylight9 h 50 min
SourceExtended outlook
SatNov 145°3°ShowersNight low 3°47%
Day
Showers. High 5.
- Wind
- N 10 km/h
- Wind gusts
- 29 km/h
- Precipitation
- 47% · 0.8 mm
- UV index (max)
- 1 Low
Night
Low 3.
- Low
- 3°
Sunrise7:06 AM
Sunset4:55 PM
Daylight9 h 48 min
SourceExtended outlook
SunNov 158°5°Partly cloudyNight low 5°13%
Day
Partly cloudy. High 8.
- Wind
- W 16 km/h
- Wind gusts
- 32 km/h
- Precipitation
- 13% · 0 mm
- UV index (max)
- 3 Moderate
Night
Low 5.
- Low
- 5°
Sunrise7:08 AM
Sunset4:54 PM
Daylight9 h 46 min
SourceExtended outlook
MonNov 168°6°Partly cloudyNight low 6°23%
Day
Partly cloudy. High 8.
- Wind
- NW 23 km/h
- Wind gusts
- 44 km/h
- Precipitation
- 23% · 0.2 mm
- UV index (max)
- 3 Moderate
Night
Low 6.
- Low
- 6°
Sunrise7:09 AM
Sunset4:53 PM
Daylight9 h 44 min
SourceExtended outlook
TueNov 177°5°ShowersNight low 5°37%
Day
Showers. High 7.
- Wind
- NW 19 km/h
- Wind gusts
- 32 km/h
- Precipitation
- 37% · 0.6 mm
- UV index (max)
- 3 Moderate
Night
Low 5.
- Low
- 5°
Sunrise7:10 AM
Sunset4:52 PM
Daylight9 h 42 min
SourceExtended outlook
WedNov 1810°5°Mostly cloudyNight low 5°19%
Day
Mostly cloudy. High 10.
- Wind
- SW 24 km/h
- Wind gusts
- 41 km/h
- Precipitation
- 19% · 0 mm
- UV index (max)
- 3 Moderate
Night
Low 5.
- Low
- 5°
Sunrise7:12 AM
Sunset4:52 PM
Daylight9 h 40 min
SourceExtended outlook
Sun & Moon
Moon calendar →Sunrise6:56 AM
Sunset5:03 PM
Daylight10 h 7 min
MoonWaning Crescent11% lit · rise 3:05 AM · set 3:07 PM
Pollen today · Thorold
TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Fri: weeds low · Sat: weeds low · Sun: 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
GrillingPoorFire up the grill
RunningPoorLace up outside
PatioPoorDinner outdoors
Forecast: Environment and Climate Change Canada (St. Catharines - Grimsby - Northern Niagara Region), issued 3:30 PM · Days 8–14: WeatherAPI.com · weather.gc.ca · 43.1168°N, 79.1996°W · Elevation 178 m · Population 18,801 · Time zone America/Toronto