St. Catharines, ON

Current Conditions

17°C 63°F

Wind:
SSW 7 km/h
SSW 5 mph
Conditions details
Observed at:
St. Catharines Airport
Date:
1:00 AM EDT Tuesday 30 May 2017
Condition:
Not observed
Pressure:
101.1 kPa
29.9 inches
Temperature:
17.1°C
62.8°F
Dew point:
12.7°C
54.9°F
Humidity:
75%
Wind:
SSW 7 km/h
SSW 5 mph

ForecastIssued: 3:30 PM EDT Monday 29 May 2017

Detailed ForecastIssued: 3:30 PM EDT Monday 29 May 2017

Chance of showers
Tonight
14°C 57°F
Mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm late this evening and after midnight. Wind west 20 km/h gusting to 40 becoming light late this evening. Low 14.
Chance of showers
Tue, 30 May
22°C 72°F
A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h in the morning. High 22. Humidex 25. UV index 7 or high.
Night:  Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Wind southwest 30 km/h becoming light in the evening. Low 13.
Chance of showers
Wed, 31 May
21°C 70°F
A mix of sun and cloud with 40 percent chance of showers. High 21.
Night:  Cloudy periods with 30 percent chance of showers. Low 9.
Chance of showers
Thu, 1 Jun
23°C 73°F
A mix of sun and cloud with 30 percent chance of showers. High 23.
Night:  Cloudy periods with 30 percent chance of showers. Low 14.
Chance of showers
Fri, 2 Jun
20°C 68°F
A mix of sun and cloud with 30 percent chance of showers. High 20.
Night:  Cloudy periods. Low 13.
A mix of sun and cloud
Sat, 3 Jun
20°C 68°F
A mix of sun and cloud. High 20.
Night:  Cloudy periods. Low 13.
A mix of sun and cloud
Sun, 4 Jun
20°C 68°F
A mix of sun and cloud. High 20.
Normals:
Max 22°C.72°F. Min 11°C.52°F.
Sunrise:
5:41 EDT
Sunset:
20:48 EDT

Averages and extremes
24 May
Average high
  • 21.0°C69.8°F
Average low
  • 9.4°C48.9°F
Highest temperature (1972-2000)
  • 29.1°C84.4°F
  • 1977
Lowest temperature (1972-2000)
  • 4.0°C39.2°F
  • 1992
Greatest precipitation (1972-2000)
  • 18.0 mm0.71 inches
  • 1999
Greatest rainfall (1972-2000)
  • 18.0 mm0.71 inches
  • 1999
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
25 May
Average high
  • 21.2°C70.2°F
Average low
  • 9.6°C49.3°F
Highest temperature (1972-2000)
  • 27.7°C81.9°F
  • 1978
Lowest temperature (1972-2000)
  • 2.7°C36.9°F
  • 1992
Greatest precipitation (1972-2000)
  • 33.1 mm1.3 inches
  • 1979
Greatest rainfall (1972-2000)
  • 33.1 mm1.3 inches
  • 1979
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
26 May
Average high
  • 21.4°C70.5°F
Average low
  • 9.8°C49.6°F
Highest temperature (1972-2000)
  • 29.4°C84.9°F
  • 1978
Lowest temperature (1972-2000)
  • 3.5°C38.3°F
  • 1994
Greatest precipitation (1972-2000)
  • 23.2 mm0.91 inches
  • 1994
Greatest rainfall (1972-2000)
  • 23.2 mm0.91 inches
  • 1994
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
27 May
Average high
  • 21.5°C70.7°F
Average low
  • 9.9°C49.8°F
Highest temperature (1972-2000)
  • 29.4°C84.9°F
  • 1987
Lowest temperature (1972-2000)
  • 1.9°C35.4°F
  • 1994
Greatest precipitation (1972-2000)
  • 10.7 mm0.42 inches
  • 1981
Greatest rainfall (1972-2000)
  • 10.7 mm0.42 inches
  • 1981
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
28 May
Average high
  • 21.7°C71.1°F
Average low
  • 10.1°C50.2°F
Highest temperature (1972-2000)
  • 31.4°C88.5°F
  • 1977
Lowest temperature (1972-2000)
  • 3.7°C38.7°F
  • 1989
Greatest precipitation (1972-2000)
  • 10.0 mm0.39 inches
  • 1984
Greatest rainfall (1972-2000)
  • 10.0 mm0.39 inches
  • 1984
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
29 May
Average high
  • 21.8°C71.2°F
Average low
  • 10.3°C50.5°F
Highest temperature (1972-2000)
  • 32.4°C90.3°F
  • 1987
Lowest temperature (1972-2000)
  • 4.6°C40.3°F
  • 1985
Greatest precipitation (1972-2000)
  • 16.2 mm0.64 inches
  • 1983
Greatest rainfall (1972-2000)
  • 16.2 mm0.64 inches
  • 1983
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
30 May
Average high
  • 22.0°C71.6°F
Average low
  • 10.5°C50.9°F
Highest temperature (1972-2000)
  • 32.1°C89.8°F
  • 1988
Lowest temperature (1972-2000)
  • 3.3°C37.9°F
  • 1993
Greatest precipitation (1972-2000)
  • 14.7 mm0.58 inches
  • 1972
Greatest rainfall (1972-2000)
  • 14.7 mm0.58 inches
  • 1972
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
31 May
Average high
  • 22.1°C71.8°F
Average low
  • 10.7°C51.3°F
Highest temperature (1972-2000)
  • 30.4°C86.7°F
  • 1988
Lowest temperature (1972-2000)
  • 5.0°C41.0°F
  • 1984
Greatest precipitation (1972-2000)
  • 28.0 mm1.1 inches
  • 1989
Greatest rainfall (1972-2000)
  • 28.0 mm1.1 inches
  • 1989
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 37 %
01 June
Average high
  • 22.3°C72.1°F
Average low
  • 10.9°C51.6°F
Highest temperature (1972-2000)
  • 29.5°C85.1°F
  • 1987
Lowest temperature (1972-2000)
  • 4.8°C40.6°F
  • 1981
Greatest precipitation (1972-2000)
  • 17.2 mm0.68 inches
  • 1997
Greatest rainfall (1972-2000)
  • 17.2 mm0.68 inches
  • 1997
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
02 June
Average high
  • 22.4°C72.3°F
Average low
  • 11.1°C52.0°F
Highest temperature (1972-2000)
  • 29.2°C84.6°F
  • 1987
Lowest temperature (1972-2000)
  • 4.4°C39.9°F
  • 1976
Greatest precipitation (1972-2000)
  • 33.0 mm1.3 inches
  • 1989
Greatest rainfall (1972-2000)
  • 33.0 mm1.3 inches
  • 1989
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %
03 June
Average high
  • 22.6°C72.7°F
Average low
  • 11.3°C52.3°F
Highest temperature (1972-2000)
  • 27.6°C81.7°F
  • 1987
Lowest temperature (1972-2000)
  • 3.3°C37.9°F
  • 1977
Greatest precipitation (1972-2000)
  • 9.6 mm0.38 inches
  • 1981
Greatest rainfall (1972-2000)
  • 9.6 mm0.38 inches
  • 1981
Greatest snowfall (1972-2000)
  • 0.0 cm0.0 inches
Most snow on the ground (1972-2000)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 36 %

Yesterday's Data

No data available for this location

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