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St. Catharines, ON

Current Conditions

Mostly Cloudy

Mostly Cloudy

24°C75°F

Wind:
WNW 19 km/h
WNW 12 mph
Humidex:
30
86
More details
Temperature:
23.6°C
74.5° F
Pressure:
100.4 kPa
29.6 inches
Dew point:
19.1°C
66.4°F
Visibility:
24 km
15 miles
Humidity:
76%
Date:
9:00 PM EDT Saturday 11 July 2020
Observed at:
St. Catharines / Niagara District Airport
Past 24 hour ConditionsPast 24 hour Conditions
Weather Radar
Satellite
Lightning
Alerts
Jet Stream
Hourly Forecast
Air Quality
Historical Weather

ForecastForecast issued: 3:30 PM EDT Saturday 11 July 2020

Detailed ForecastForecast issued: 3:30 PM EDT Saturday 11 July 2020

Chance of showers
Tonight
19°C66°F
Cloudy with 40 percent chance of showers this evening then partly cloudy. Risk of a thunderstorm early this evening. Wind northwest 20 km/h gusting to 40 increasing to 40 gusting to 60 then diminishing to 20 early this evening. Low 19.
Chance of showers
Sun, 12 Jul
29°C84°F
A mix of sun and cloud. 40 percent chance of showers in the afternoon. Wind west 20 km/h becoming light in the morning. High 29. Humidex 36. UV index 9 or very high.
Night:  Partly cloudy. 30 percent chance of showers in the evening. Wind north 20 km/h becoming light near midnight. Low 18.
Chance of showers
Mon, 13 Jul
24°C75°F
A mix of sun and cloud with 40 percent chance of showers. High 24.
Night:  Clear. Low 17.
Sunny
Tue, 14 Jul
27°C81°F
Sunny. High 27.
Night:  Clear. Low 19.
Cloudy
Wed, 15 Jul
25°C77°F
Increasing cloudiness. High 25.
Night:  Cloudy with 60 percent chance of showers. Low 21.
Chance of showers
Thu, 16 Jul
27°C81°F
A mix of sun and cloud with 60 percent chance of showers. High 27.
Night:  Clear. Low 20.
Showers
Fri, 17 Jul
26°C79°F
Showers. High 26.
Normals:
Max 27°C.81°F. Min 17°C.63°F.
Sunrise:
5:48 EDT
Sunset:
20:57 EDT

Averages and extremes

06 July
Average high
  • 26.7°C80.1°F
Average low
  • 16.0°C60.8°F
Highest temperature (1971-2000)
  • 36.3°C97.3°F
  • 1988
Lowest temperature (1971-2000)
  • 9.0°C48.2°F
  • 1979
Greatest precipitation (1971-2000)
  • 19.4 mm0.76 inches
  • 1977
Greatest rainfall (1971-2000)
  • 19.4 mm0.76 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
  • 31 %
07 July
Average high
  • 26.8°C80.2°F
Average low
  • 16.0°C60.8°F
Highest temperature (1971-2000)
  • 37.4°C99.3°F
  • 1988
Lowest temperature (1971-2000)
  • 9.5°C49.1°F
  • 1984
Greatest precipitation (1971-2000)
  • 34.4 mm1.35 inches
  • 1994
Greatest rainfall (1971-2000)
  • 34.4 mm1.35 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
  • 31 %
08 July
Average high
  • 26.9°C80.4°F
Average low
  • 16.1°C61.0°F
Highest temperature (1971-2000)
  • 37.2°C99.0°F
  • 1988
Lowest temperature (1971-2000)
  • 8.0°C46.4°F
  • 1984
Greatest precipitation (1971-2000)
  • 38.8 mm1.53 inches
  • 1998
Greatest rainfall (1971-2000)
  • 38.8 mm1.53 inches
  • 1998
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 %
09 July
Average high
  • 27.0°C80.6°F
Average low
  • 16.2°C61.2°F
Highest temperature (1971-2000)
  • 35.9°C96.6°F
  • 1988
Lowest temperature (1971-2000)
  • 11.0°C51.8°F
  • 1995
Greatest precipitation (1971-2000)
  • 12.4 mm0.49 inches
  • 2000
Greatest rainfall (1971-2000)
  • 12.4 mm0.49 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
  • 31 %
10 July
Average high
  • 27.0°C80.6°F
Average low
  • 16.3°C61.3°F
Highest temperature (1971-2000)
  • 35.5°C95.9°F
  • 1988
Lowest temperature (1971-2000)
  • 11.2°C52.2°F
  • 1997
Greatest precipitation (1971-2000)
  • 8.8 mm0.35 inches
  • 1992
Greatest rainfall (1971-2000)
  • 8.8 mm0.35 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 %
11 July
Average high
  • 27.1°C80.8°F
Average low
  • 16.3°C61.3°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1987
Lowest temperature (1971-2000)
  • 9.3°C48.7°F
  • 1978
Greatest precipitation (1971-2000)
  • 18.8 mm0.74 inches
  • 1976
Greatest rainfall (1971-2000)
  • 18.8 mm0.74 inches
  • 1976
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 %
12 July
Average high
  • 27.2°C81.0°F
Average low
  • 16.4°C61.5°F
Highest temperature (1971-2000)
  • 33.1°C91.6°F
  • 1983
Lowest temperature (1971-2000)
  • 10.0°C50.0°F
  • 1973
Greatest precipitation (1971-2000)
  • 24.6 mm0.97 inches
  • 1986
Greatest rainfall (1971-2000)
  • 24.6 mm0.97 inches
  • 1986
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 %
13 July
Average high
  • 27.2°C81.0°F
Average low
  • 16.5°C61.7°F
Highest temperature (1971-2000)
  • 33.5°C92.3°F
  • 1995
Lowest temperature (1971-2000)
  • 11.3°C52.3°F
  • 1990
Greatest precipitation (1971-2000)
  • 66.0 mm2.6 inches
  • 1971
Greatest rainfall (1971-2000)
  • 66.0 mm2.6 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 %
14 July
Average high
  • 27.3°C81.1°F
Average low
  • 16.5°C61.7°F
Highest temperature (1971-2000)
  • 33.0°C91.4°F
  • 1995
Lowest temperature (1971-2000)
  • 12.2°C54.0°F
  • 1976
Greatest precipitation (1971-2000)
  • 33.4 mm1.31 inches
  • 1987
Greatest rainfall (1971-2000)
  • 33.4 mm1.31 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 %
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 %

Yesterday's Data

No data available for this location

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