St. Catharines, ON

Current Conditions

16°C61°F

Wind:
WNW 31
gust 58 km/h
WNW 19
gust 36 mph
More details
Temperature:
16.0°C
60.8° F
Pressure:
101.7 kPa
30.0 inches
Dew point:
8.8°C
47.8°F
Humidity:
62%
Date:
1:00 AM EDT Saturday 22 September 2018
Observed at:
St. Catharines Airport
Past 24 hour ConditionsPast 24 hour Conditions
Weather Radar
Satellite
Lightning
Alerts
Jet Stream
Hourly Forecast
Air Quality

ForecastForecast issued: 12:08 AM EDT Saturday 22 September 2018

Detailed ForecastForecast issued: 12:08 AM EDT Saturday 22 September 2018

Partly cloudy
Tonight
10°C50°F
Partly cloudy. Wind northwest 20 km/h gusting to 40. Low 10.
A mix of sun and cloud
Sat, 22 Sep
16°C61°F
A mix of sun and cloud. Clearing in the afternoon. Wind north 20 km/h becoming light near noon. High 16. UV index 6 or high.
Night:  Clear. Low 7.
Sunny
Sun, 23 Sep
20°C68°F
Sunny. High 20.
Night:  Clear. Low 10.
A mix of sun and cloud
Mon, 24 Sep
23°C73°F
A mix of sun and cloud. High 23.
Night:  Cloudy with 40 percent chance of showers. Low 14.
Chance of showers
Tue, 25 Sep
21°C70°F
Cloudy with 60 percent chance of showers. Windy. High 21.
Night:  Cloudy with 60 percent chance of showers. Low 15.
Chance of showers
Wed, 26 Sep
19°C66°F
A mix of sun and cloud with 40 percent chance of showers. High 19.
Night:  Clear. Low 11.
A mix of sun and cloud
Thu, 27 Sep
19°C66°F
A mix of sun and cloud. High 19.
Normals:
Max 20°C.68°F. Min 11°C.52°F.
Sunrise:
7:04 EDT
Sunset:
19:15 EDT

Averages and extremes

16 September
Average high
  • 21.6°C70.9°F
Average low
  • 11.6°C52.9°F
Highest temperature (1971-2000)
  • 31.3°C88.3°F
  • 1991
Lowest temperature (1971-2000)
  • 5.0°C41.0°F
  • 1986
Greatest precipitation (1971-2000)
  • 29.0 mm1.14 inches
  • 1977
Greatest rainfall (1971-2000)
  • 29.0 mm1.14 inches
  • 1977
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
17 September
Average high
  • 21.4°C70.5°F
Average low
  • 11.4°C52.5°F
Highest temperature (1971-2000)
  • 30.0°C86.0°F
  • 1972
Lowest temperature (1971-2000)
  • 3.5°C38.3°F
  • 1986
Greatest precipitation (1971-2000)
  • 24.0 mm0.94 inches
  • 1978
Greatest rainfall (1971-2000)
  • 24.0 mm0.94 inches
  • 1978
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
18 September
Average high
  • 21.2°C70.2°F
Average low
  • 11.2°C52.2°F
Highest temperature (1971-2000)
  • 27.5°C81.5°F
  • 1985
Lowest temperature (1971-2000)
  • 3.7°C38.7°F
  • 1990
Greatest precipitation (1971-2000)
  • 42.6 mm1.68 inches
  • 1977
Greatest rainfall (1971-2000)
  • 42.6 mm1.68 inches
  • 1977
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
19 September
Average high
  • 21.0°C69.8°F
Average low
  • 11.1°C52.0°F
Highest temperature (1971-2000)
  • 29.2°C84.6°F
  • 1985
Lowest temperature (1971-2000)
  • 3.0°C37.4°F
  • 1993
Greatest precipitation (1971-2000)
  • 15.4 mm0.61 inches
  • 1977
Greatest rainfall (1971-2000)
  • 15.4 mm0.61 inches
  • 1977
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
20 September
Average high
  • 20.8°C69.4°F
Average low
  • 10.9°C51.6°F
Highest temperature (1971-2000)
  • 29.1°C84.4°F
  • 1983
Lowest temperature (1971-2000)
  • 2.3°C36.1°F
  • 1993
Greatest precipitation (1971-2000)
  • 14.2 mm0.56 inches
  • 1971
Greatest rainfall (1971-2000)
  • 14.2 mm0.56 inches
  • 1971
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
21 September
Average high
  • 20.5°C68.9°F
Average low
  • 10.7°C51.3°F
Highest temperature (1971-2000)
  • 29.0°C84.2°F
  • 1980
Lowest temperature (1971-2000)
  • 1.1°C34.0°F
  • 1973
Greatest precipitation (1971-2000)
  • 23.4 mm0.92 inches
  • 1983
Greatest rainfall (1971-2000)
  • 23.4 mm0.92 inches
  • 1983
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
22 September
Average high
  • 20.3°C68.5°F
Average low
  • 10.5°C50.9°F
Highest temperature (1971-2000)
  • 28.1°C82.6°F
  • 1980
Lowest temperature (1971-2000)
  • 4.4°C39.9°F
  • 1974
Greatest precipitation (1971-2000)
  • 47.6 mm1.87 inches
  • 1989
Greatest rainfall (1971-2000)
  • 47.6 mm1.87 inches
  • 1989
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
23 September
Average high
  • 20.1°C68.2°F
Average low
  • 10.3°C50.5°F
Highest temperature (1971-2000)
  • 27.6°C81.7°F
  • 1985
Lowest temperature (1971-2000)
  • 0.6°C33.1°F
  • 1974
Greatest precipitation (1971-2000)
  • 25.0 mm0.98 inches
  • 2000
Greatest rainfall (1971-2000)
  • 25.0 mm0.98 inches
  • 2000
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
24 September
Average high
  • 19.9°C67.8°F
Average low
  • 10.1°C50.2°F
Highest temperature (1971-2000)
  • 22.9°C73.2°F
  • 1986
Lowest temperature (1971-2000)
  • 1.7°C35.1°F
  • 1974
Greatest precipitation (1971-2000)
  • 34.0 mm1.34 inches
  • 1977
Greatest rainfall (1971-2000)
  • 34.0 mm1.34 inches
  • 1977
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
25 September
Average high
  • 19.7°C67.5°F
Average low
  • 9.8°C49.6°F
Highest temperature (1971-2000)
  • 24.4°C75.9°F
  • 1972
Lowest temperature (1971-2000)
  • 4.0°C39.2°F
  • 1989
Greatest precipitation (1971-2000)
  • 63.0 mm2.48 inches
  • 1994
Greatest rainfall (1971-2000)
  • 63.0 mm2.48 inches
  • 1994
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
26 September
Average high
  • 19.5°C67.1°F
Average low
  • 9.6°C49.3°F
Highest temperature (1971-2000)
  • 29.3°C84.7°F
  • 1998
Lowest temperature (1971-2000)
  • 4.1°C39.4°F
  • 1978
Greatest precipitation (1971-2000)
  • 26.2 mm1.03 inches
  • 1977
Greatest rainfall (1971-2000)
  • 26.2 mm1.03 inches
  • 1977
Greatest snowfall (1971-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1971-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %

Yesterday's Data

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