Yellow warningSmall Craft · in effect until 5:00 PM · +1 moreDetails
Current weather
1:00 PM18°C
Partly Cloudy
High 18° · Low 10° · 70%
- Wind
- SW 34 km/h
- Wind gusts
- 55 km/h
- Humidity
- 62%
- Air quality (AQHI)
- 1.5 · Low risk
- UV index
- 2 · Low
More details
- Dew point
- 10°C
- Pressure
- 100.7 kPa ↘ falling
- Visibility
- 10 km
- Sunrise
- 6:56 AM
- Sunset
- 5:03 PM
- Daylight
- 10 h 7 min
Observed at St. Catharines / Niagara District Airport, 1:00 PM EST · Environment and Climate Change Canada
Hourly forecast
Hourly →- Now16°6%
- 2 PM17°0%
- 3 PM16°40%
- 4 PM15°40%
- 5 PM15°40%
- 6 PM15°60%
- 7 PM15°60%
- 8 PM14°60%
- 9 PM14°60%
- 10 PM13°60%
- 11 PM13°60%
- Fri
- 12 AM13°60%
- 1 AM13°60%
- 2 AM13°60%
- 3 AM12°60%
- 4 AM12°70%
- 5 AM11°70%
- 6 AM11°70%
- 7 AM10°70%
- 8 AM10°70%
- 9 AM11°70%
- 10 AM11°70%
- 11 AM11°70%
- 12 PM12°70%
14-day forecast
Full 14-day →TodayNov 518°10°Chance of showersChance of showers70%
Day
Becoming cloudy this afternoon with 40 percent chance of showers late this afternoon. Wind southwest 40 km/h gusting to 60. High 18. UV index 3 or moderate.
- Wind
- SW 40 km/h
- Wind gusts
- 60 km/h
- Precipitation
- 40% · 5 mm
- UV index (max)
- 3 Moderate
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy with 70 percent chance of showers. Wind west 30 km/h becoming light late this evening. Low 10.
- Low
- 10°
- Wind
- W 30 km/h
- Precipitation
- 70%
Sunrise6:56 AM
Sunset5:03 PM
Daylight10 h 7 min
Normal10° / 3°
FriNov 613°6°Periods of rainChance of showers60%
Day
Periods of rain. High 13. UV index 1 or low.
- Wind
- SW 10 km/h
- Precipitation
- 60% · 6 mm
- UV index (max)
- 1 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy with 60 percent chance of showers. Low 6.
- Low
- 6°
- Precipitation
- 60%
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% · 9 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% · 0.1 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 periods13%
Day
A mix of sun and cloud. High 10.
- Precipitation
- 13% · 0 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°7°A mix of sun and cloud43%
Day
A mix of sun and cloud. High 8.
- Precipitation
- 43% · 0.5 mm
- UV index (max)
- 3 Moderate
Night
Low 7.
- Low
- 7°
Sunrise7:03 AM
Sunset4:58 PM
Daylight9 h 55 min
Days 8–14 · trend, lower confidence
ThuNov 127°5°ShowersNight low 5°79%
Day
Showers. High 7.
- Wind
- N 23 km/h
- Wind gusts
- 43 km/h
- Precipitation
- 79% · 4 mm
- UV index (max)
- 2 Low
Night
Low 5.
- Low
- 5°
Sunrise7:04 AM
Sunset4:57 PM
Daylight9 h 53 min
SourceExtended outlook
FriNov 136°5°ShowersNight low 5°83%
Day
Showers. High 6.
- Wind
- N 32 km/h
- Wind gusts
- 51 km/h
- Precipitation
- 83% · 9 mm
- UV index (max)
- 2 Low
Night
Low 5.
- Low
- 5°
Sunrise7:05 AM
Sunset4:56 PM
Daylight9 h 50 min
SourceExtended outlook
SatNov 147°4°Partly cloudyNight low 4°21%
Day
Partly cloudy. High 7.
- Wind
- N 21 km/h
- Wind gusts
- 35 km/h
- Precipitation
- 21% · 0.1 mm
- UV index (max)
- 2 Low
Night
Low 4.
- Low
- 4°
Sunrise7:06 AM
Sunset4:55 PM
Daylight9 h 48 min
SourceExtended outlook
SunNov 1511°6°Partly cloudyNight low 6°16%
Day
Partly cloudy. High 11.
- Wind
- SW 28 km/h
- Wind gusts
- 42 km/h
- Precipitation
- 16% · 0 mm
- UV index (max)
- 4 Moderate
Night
Low 6.
- Low
- 6°
Sunrise7:08 AM
Sunset4:54 PM
Daylight9 h 46 min
SourceExtended outlook
MonNov 1610°8°Partly cloudyNight low 8°21%
Day
Partly cloudy. High 10.
- Wind
- W 27 km/h
- Wind gusts
- 51 km/h
- Precipitation
- 21% · 0.2 mm
- UV index (max)
- 3 Moderate
Night
Low 8.
- Low
- 8°
Sunrise7:09 AM
Sunset4:53 PM
Daylight9 h 44 min
SourceExtended outlook
TueNov 179°7°ShowersNight low 7°36%
Day
Showers. High 9.
- Wind
- W 19 km/h
- Wind gusts
- 42 km/h
- Precipitation
- 36% · 0.6 mm
- UV index (max)
- 3 Moderate
Night
Low 7.
- Low
- 7°
Sunrise7:10 AM
Sunset4:52 PM
Daylight9 h 42 min
SourceExtended outlook
WedNov 1811°7°Mostly cloudyNight low 7°18%
Day
Mostly cloudy. High 11.
- Wind
- SW 13 km/h
- Wind gusts
- 31 km/h
- Precipitation
- 18% · 0 mm
- UV index (max)
- 3 Moderate
Night
Low 7.
- Low
- 7°
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 Crescent12% 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 11:00 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