Yellow warningSmall Craft · in effect until 5:00 PM · +1 moreDetails
14-day forecast · St. Catharines
30-day outlook →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%
Sunrise6:57 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
Daylight9 h 59 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%
Sunrise7:02 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 52 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°
Sunrise7:06 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°
Sunrise7:07 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 43 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°
Sunrise7:11 AM
Sunset4:52 PM
Daylight9 h 41 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 39 min
SourceExtended outlook
14 days at a glance
Today →| Day | Weather | High | Low | Precip | Wind | UV |
|---|---|---|---|---|---|---|
| Today Nov 5 | Showers | 18° | 10° | 70% · 5 mm | SW 40 km/h | 3 |
| Fri Nov 6 | Showers | 13° | 6° | 60% · 6 mm | SW 10 km/h | 1 |
| Sat Nov 7 | Showers | 8° | 6° | 40% · 9 mm | N 28 km/h | 0 |
| Sun Nov 8 | Partly cloudy | 10° | 6° | 40% · 0.1 mm | W 30 km/h | 2 |
| Mon Nov 9 | Partly cloudy | 10° | 8° | 13% · 0 mm | W 32 km/h | 4 |
| Tue Nov 10 | Partly cloudy | 12° | 5° | 30% · 0 mm | W 31 km/h | 4 |
| Wed Nov 11 | Partly cloudy | 8° | 7° | 43% · 0.5 mm | W 20 km/h | 3 |
| Thu Nov 12 | Showers | 7° | 5° | 79% · 4 mm | N 23 km/h | 2 |
| Fri Nov 13 | Showers | 6° | 5° | 83% · 9 mm | N 32 km/h | 2 |
| Sat Nov 14 | Partly cloudy | 7° | 4° | 21% · 0.1 mm | N 21 km/h | 2 |
| Sun Nov 15 | Partly cloudy | 11° | 6° | 16% · 0 mm | SW 28 km/h | 4 |
| Mon Nov 16 | Partly cloudy | 10° | 8° | 21% · 0.2 mm | W 27 km/h | 3 |
| Tue Nov 17 | Showers | 9° | 7° | 36% · 0.6 mm | W 19 km/h | 3 |
| Wed Nov 18 | Mostly cloudy | 11° | 7° | 18% · 0 mm | SW 13 km/h | 3 |
Weather map — St. Catharines
St. Catharines →Forecast: Environment and Climate Change Canada (St. Catharines - Grimsby - Northern Niagara Region), issued 11:00 AM · Days 8–14: WeatherAPI.com · weather.gc.ca · 43.1713°N, 79.2427°W · Elevation 102 m · Population 136,803 · Time zone America/Toronto