Yellow warningSmall Craft · in effect until 5:00 PM · +1 moreDetails
14-day forecast · St. Catharines
30-day outlook →TodayNov 564°50°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 25 mph
- Wind gusts
- 37 mph
- Precipitation
- 40% · 0.21 in
- 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
- 50°
- Wind
- W 19 mph
- Precipitation
- 70%
Sunrise6:56 AM
Sunset5:03 PM
Daylight10 h 7 min
Normal50° / 37°
FriNov 655°43°Periods of rainChance of showers60%
Day
Periods of rain. High 13. UV index 1 or low.
- Wind
- SW 6 mph
- Precipitation
- 60% · 0.24 in
- UV index (max)
- 1 Low
- Air quality (AQHI)
- 2 · Low risk
Night
Cloudy with 60 percent chance of showers. Low 6.
- Low
- 43°
- Precipitation
- 60%
Sunrise6:57 AM
Sunset5:04 PM
Daylight10 h 7 min
SatNov 746°43°Chance of showersChance of showers40%
Day
Cloudy with 40 percent chance of showers. High 8.
- Precipitation
- 40% · 0.36 in
- UV index (max)
- 0 Low
Night
Cloudy with 30 percent chance of showers. Low 6.
- Low
- 43°
- Precipitation
- 30%
Sunrise6:58 AM
Sunset5:02 PM
Daylight10 h 4 min
SunNov 850°43°A mix of sun and cloudChance of showers40%
Day
A mix of sun and cloud. Windy. High 10.
- Wind
- W 19 mph
- Wind gusts
- 31 mph
- Precipitation
- 40% · 0 in
- UV index (max)
- 2 Low
Night
Cloudy periods with 40 percent chance of showers. Low 6.
- Low
- 43°
- Precipitation
- 40%
Sunrise6:59 AM
Sunset5:01 PM
Daylight10 h 2 min
MonNov 950°46°A mix of sun and cloudCloudy periods13%
Day
A mix of sun and cloud. High 10.
- Precipitation
- 13% · 0 in
- UV index (max)
- 4 Moderate
Night
Cloudy periods. Low 8.
- Low
- 46°
Sunrise7:00 AM
Sunset5:00 PM
Daylight9 h 59 min
TueNov 1054°41°Chance of showersChance of showers30%
Day
A mix of sun and cloud with 30 percent chance of showers. High 12.
- Precipitation
- 30% · 0 in
- UV index (max)
- 4 Moderate
Night
Cloudy periods with 30 percent chance of showers. Low plus 5.
- Low
- 41°
- Precipitation
- 30%
Sunrise7:02 AM
Sunset4:59 PM
Daylight9 h 57 min
WedNov 1146°45°A mix of sun and cloud43%
Day
A mix of sun and cloud. High 8.
- Precipitation
- 43% · 0.02 in
- UV index (max)
- 3 Moderate
Night
Low 45.
- Low
- 45°
Sunrise7:03 AM
Sunset4:58 PM
Daylight9 h 55 min
Days 8–14 · trend, lower confidence
ThuNov 1245°41°ShowersNight low 41°79%
Day
Showers. High 45.
- Wind
- N 15 mph
- Wind gusts
- 27 mph
- Precipitation
- 79% · 0.14 in
- UV index (max)
- 2 Low
Night
Low 41.
- Low
- 41°
Sunrise7:04 AM
Sunset4:57 PM
Daylight9 h 52 min
SourceExtended outlook
FriNov 1343°40°ShowersNight low 40°83%
Day
Showers. High 43.
- Wind
- N 20 mph
- Wind gusts
- 32 mph
- Precipitation
- 83% · 0.34 in
- UV index (max)
- 2 Low
Night
Low 40.
- Low
- 40°
Sunrise7:06 AM
Sunset4:56 PM
Daylight9 h 50 min
SourceExtended outlook
SatNov 1444°39°Partly cloudyNight low 39°21%
Day
Partly cloudy. High 44.
- Wind
- N 13 mph
- Wind gusts
- 22 mph
- Precipitation
- 21% · 0 in
- UV index (max)
- 2 Low
Night
Low 39.
- Low
- 39°
Sunrise7:07 AM
Sunset4:55 PM
Daylight9 h 48 min
SourceExtended outlook
SunNov 1552°43°Partly cloudyNight low 43°16%
Day
Partly cloudy. High 52.
- Wind
- SW 17 mph
- Wind gusts
- 26 mph
- Precipitation
- 16% · 0 in
- UV index (max)
- 4 Moderate
Night
Low 43.
- Low
- 43°
Sunrise7:08 AM
Sunset4:54 PM
Daylight9 h 46 min
SourceExtended outlook
MonNov 1650°46°Partly cloudyNight low 46°21%
Day
Partly cloudy. High 50.
- Wind
- W 17 mph
- Wind gusts
- 32 mph
- Precipitation
- 21% · 0.01 in
- UV index (max)
- 3 Moderate
Night
Low 46.
- Low
- 46°
Sunrise7:09 AM
Sunset4:53 PM
Daylight9 h 43 min
SourceExtended outlook
TueNov 1749°44°ShowersNight low 44°36%
Day
Showers. High 49.
- Wind
- W 12 mph
- Wind gusts
- 26 mph
- Precipitation
- 36% · 0.02 in
- UV index (max)
- 3 Moderate
Night
Low 44.
- Low
- 44°
Sunrise7:11 AM
Sunset4:52 PM
Daylight9 h 41 min
SourceExtended outlook
WedNov 1851°44°Mostly cloudyNight low 44°18%
Day
Mostly cloudy. High 51.
- Wind
- SW 8 mph
- Wind gusts
- 19 mph
- Precipitation
- 18% · 0 in
- UV index (max)
- 3 Moderate
Night
Low 44.
- Low
- 44°
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 | 64° | 50° | 70% · 0.21 in | SW 25 mph | 3 |
| Fri Nov 6 | Showers | 55° | 43° | 60% · 0.24 in | SW 6 mph | 1 |
| Sat Nov 7 | Showers | 46° | 43° | 40% · 0.36 in | N 18 mph | 0 |
| Sun Nov 8 | Partly cloudy | 50° | 43° | 40% · 0 in | W 19 mph | 2 |
| Mon Nov 9 | Partly cloudy | 50° | 46° | 13% · 0 in | W 20 mph | 4 |
| Tue Nov 10 | Partly cloudy | 54° | 41° | 30% · 0 in | W 19 mph | 4 |
| Wed Nov 11 | Partly cloudy | 46° | 45° | 43% · 0.02 in | W 12 mph | 3 |
| Thu Nov 12 | Showers | 45° | 41° | 79% · 0.14 in | N 15 mph | 2 |
| Fri Nov 13 | Showers | 43° | 40° | 83% · 0.34 in | N 20 mph | 2 |
| Sat Nov 14 | Partly cloudy | 44° | 39° | 21% · 0 in | N 13 mph | 2 |
| Sun Nov 15 | Partly cloudy | 52° | 43° | 16% · 0 in | SW 17 mph | 4 |
| Mon Nov 16 | Partly cloudy | 50° | 46° | 21% · 0.01 in | W 17 mph | 3 |
| Tue Nov 17 | Showers | 49° | 44° | 36% · 0.02 in | W 12 mph | 3 |
| Wed Nov 18 | Mostly cloudy | 51° | 44° | 18% · 0 in | SW 8 mph | 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 335 ft · Population 136,803 · Time zone America/Toronto