St. Catharines, ON

Current Conditions
Mostly Cloudy

Mostly Cloudy

21°C 70°F

Wind:
SSE 17 gust 27 km/h
SSE 11 gust 17 mph
Humidex:
26
80
Conditions details
Observed at:
St. Catharines Airport
Date:
4:00 PM EDT Thursday 20 July 2017
Condition:
Mostly Cloudy
Pressure:
101.3 kPa
29.9 inches
Tendency:
Rising
Visibility:
24 km
15 miles
Temperature:
21.3°C
70.3°F
Dew point:
16.7°C
62.1°F
Humidity:
75%
Wind:
SSE 17 gust 27 km/h
SSE 11 gust 17 mph
Humidex:
26
80

ForecastIssued: 3:41 PM EDT Thursday 20 July 2017

Detailed ForecastIssued: 3:41 PM EDT Thursday 20 July 2017

A few clouds
Tonight
16°C 61°F
Partly cloudy. Clearing this evening. Low 16.
Sunny
Fri, 21 Jul
28°C 82°F
Sunny. High 28. Humidex 33. UV index 10 or very high.
Night:  Clear. Becoming partly cloudy before morning. Low 17.
Chance of showers
Sat, 22 Jul
22°C 72°F
A mix of sun and cloud with 40 percent chance of showers. High 22.
Night:  Cloudy periods with 40 percent chance of showers. Low 18.
Chance of showers
Sun, 23 Jul
21°C 70°F
A mix of sun and cloud with 40 percent chance of showers. High 21.
Night:  Cloudy periods with 40 percent chance of showers. Low 17.
Chance of showers
Mon, 24 Jul
20°C 68°F
A mix of sun and cloud with 30 percent chance of showers. High 20.
Night:  Cloudy periods with 30 percent chance of showers. Low 16.
A mix of sun and cloud
Tue, 25 Jul
22°C 72°F
A mix of sun and cloud. High 22.
Night:  Clear. Low 16.
A mix of sun and cloud
Wed, 26 Jul
24°C 75°F
A mix of sun and cloud. High 24.
Normals:
Max 27°C.81°F. Min 17°C.63°F.
Sunrise:
5:55 EDT
Sunset:
20:51 EDT

Averages and extremes
15 July
Average high
  • 27.3°C81.1°F
Average low
  • 16.6°C61.9°F
Highest temperature (1971-2000)
  • 35.7°C96.3°F
  • 1983
Lowest temperature (1971-2000)
  • 11.1°C52.0°F
  • 1989
Greatest precipitation (1971-2000)
  • 24.0 mm0.94 inches
  • 1990
Greatest rainfall (1971-2000)
  • 24.0 mm0.94 inches
  • 1990
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
  • 31 %
16 July
Average high
  • 27.3°C81.1°F
Average low
  • 16.6°C61.9°F
Highest temperature (1971-2000)
  • 35.6°C96.1°F
  • 1988
Lowest temperature (1971-2000)
  • 11.0°C51.8°F
  • 1989
Greatest precipitation (1971-2000)
  • 13.4 mm0.53 inches
  • 1988
Greatest rainfall (1971-2000)
  • 13.4 mm0.53 inches
  • 1988
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
  • 31 %
17 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 34.1°C93.4°F
  • 1999
Lowest temperature (1971-2000)
  • 11.7°C53.1°F
  • 1976
Greatest precipitation (1971-2000)
  • 51.4 mm2.02 inches
  • 1988
Greatest rainfall (1971-2000)
  • 51.4 mm2.02 inches
  • 1988
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
  • 31 %
18 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 32.6°C90.7°F
  • 1982
Lowest temperature (1971-2000)
  • 11.0°C51.8°F
  • 1985
Greatest precipitation (1971-2000)
  • 17.0 mm0.67 inches
  • 1992
Greatest rainfall (1971-2000)
  • 17.0 mm0.67 inches
  • 1992
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
  • 31 %
19 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1991
Lowest temperature (1971-2000)
  • 13.0°C55.4°F
  • 1997
Greatest precipitation (1971-2000)
  • 14.4 mm0.57 inches
  • 1987
Greatest rainfall (1971-2000)
  • 14.4 mm0.57 inches
  • 1987
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
  • 31 %
20 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 35.6°C96.1°F
  • 1977
Lowest temperature (1971-2000)
  • 9.4°C48.9°F
  • 1997
Greatest precipitation (1971-2000)
  • 52.0 mm2.05 inches
  • 1981
Greatest rainfall (1971-2000)
  • 52.0 mm2.05 inches
  • 1981
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
  • 31 %
21 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 32.6°C90.7°F
  • 1980
Lowest temperature (1971-2000)
  • 11.1°C52.0°F
  • 1974
Greatest precipitation (1971-2000)
  • 6.6 mm0.26 inches
  • 1978
Greatest rainfall (1971-2000)
  • 6.6 mm0.26 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
  • 31 %
22 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1972
Lowest temperature (1971-2000)
  • 9.8°C49.6°F
  • 1992
Greatest precipitation (1971-2000)
  • 27.0 mm1.06 inches
  • 1980
Greatest rainfall (1971-2000)
  • 27.0 mm1.06 inches
  • 1980
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
  • 31 %
23 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1972
Lowest temperature (1971-2000)
  • 10.0°C50.0°F
  • 1985
Greatest precipitation (1971-2000)
  • 26.0 mm1.02 inches
  • 1995
Greatest rainfall (1971-2000)
  • 26.0 mm1.02 inches
  • 1995
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
  • 31 %
24 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 32.9°C91.2°F
  • 1987
Lowest temperature (1971-2000)
  • 11.1°C52.0°F
  • 1976
Greatest precipitation (1971-2000)
  • 28.2 mm1.11 inches
  • 1971
Greatest rainfall (1971-2000)
  • 28.2 mm1.11 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
  • 31 %
25 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1989
Lowest temperature (1971-2000)
  • 9.4°C48.9°F
  • 1976
Greatest precipitation (1971-2000)
  • 32.0 mm1.26 inches
  • 1979
Greatest rainfall (1971-2000)
  • 32.0 mm1.26 inches
  • 1979
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
  • 31 %

Yesterday's Data

No data available for this location

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