St. Catharines, ON

Current Conditions

18°C65°F

Wind:
NW 9 km/h
NW 6 mph
More details
Temperature:
18.1°C
64.6° F
Pressure:
101.5 kPa
30.0 inches
Dew point:
14.2°C
57.6°F
Humidity:
78%
Date:
3:00 AM EDT Wednesday 18 July 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: 3:30 PM EDT Tuesday 17 July 2018

Detailed ForecastForecast issued: 3:30 PM EDT Tuesday 17 July 2018

A few clouds
Tonight
16°C61°F
A few clouds. Wind northwest 20 km/h gusting to 40. Low 16.
Sunny
Wed, 18 Jul
24°C75°F
Sunny. Wind northeast 20 km/h becoming light near noon. High 24. UV index 9 or very high.
Night:  Clear. Low 14.
Sunny
Thu, 19 Jul
25°C77°F
Sunny. High 25.
Night:  Clear. Low 18.
A mix of sun and cloud
Fri, 20 Jul
27°C81°F
A mix of sun and cloud. High 27.
Night:  Cloudy periods with 30 percent chance of showers. Low 20.
Chance of showers
Sat, 21 Jul
24°C75°F
Cloudy with 40 percent chance of showers. High 24.
Night:  Cloudy with 40 percent chance of showers. Low 19.
Chance of showers
Sun, 22 Jul
23°C73°F
Cloudy with 40 percent chance of showers. High 23.
Night:  Cloudy periods with 30 percent chance of showers. Low 19.
Chance of showers
Mon, 23 Jul
23°C73°F
A mix of sun and cloud with 30 percent chance of showers. High 23.
Normals:
Max 27°C.81°F. Min 17°C.63°F.
Sunrise:
5:53 EDT
Sunset:
20:53 EDT

Averages and extremes

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 %
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 %

Yesterday's Data

No data available for this location

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