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St. Catharines, ON

Current Conditions

Mostly Cloudy

Mostly Cloudy

22°C72°F

Wind:
SW 13 km/h
SW 8 mph
Humidex:
25
77
More details
Temperature:
22.2°C
72.0° F
Pressure:
101.5 kPa
30.0 inches
Dew point:
12.1°C
53.8°F
Visibility:
24 km
15 miles
Humidity:
52%
Date:
3:00 PM EDT Saturday 31 July 2021
Observed at:
St. Catharines / Niagara District Airport
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Historical Weather

ForecastForecast issued: 3:30 PM EDT Saturday 31 July 2021

Detailed ForecastForecast issued: 3:30 PM EDT Saturday 31 July 2021

Partly cloudy
Tonight
17°C63°F
Partly cloudy. Becoming cloudy after midnight. Low 17.
Chance of showers
Sun, 1 Aug
22°C72°F
Cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. Risk of a thunderstorm in the afternoon. Wind becoming west 20 km/h gusting to 40 early in the afternoon then light in the afternoon. High 22 with temperature falling to 19 in the afternoon. Humidex 27. UV index 5 or moderate.
Night:  Mainly cloudy with 70 percent chance of showers in the evening and after midnight and risk of a thunderstorm. Clearing before morning. Wind becoming north 20 km/h gusting to 40 then light near midnight. Temperature steady near 16.
Sunny
Mon, 2 Aug
23°C73°F
Sunny. High 23.
Night:  Clear. Low 16.
Sunny
Tue, 3 Aug
24°C75°F
Sunny. High 24.
Night:  Cloudy periods. Low 17.
A mix of sun and cloud
Wed, 4 Aug
24°C75°F
A mix of sun and cloud. High 24.
Night:  Cloudy periods. Low 18.
A mix of sun and cloud
Thu, 5 Aug
26°C79°F
A mix of sun and cloud. High 26.
Night:  Cloudy periods. Low 19.
A mix of sun and cloud
Fri, 6 Aug
28°C82°F
A mix of sun and cloud. High 28.
Normals:
Max 27°C.81°F. Min 17°C.63°F.
Sunrise:
6:06 EDT
Sunset:
20:40 EDT

Averages and extremes

26 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 31.2°C88.2°F
  • 1989
Lowest temperature (1971-2000)
  • 9.4°C48.9°F
  • 1975
Greatest precipitation (1971-2000)
  • 25.4 mm1.0 inches
  • 1978
Greatest rainfall (1971-2000)
  • 25.4 mm1.0 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

27 July
Average high
  • 27.4°C81.3°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 32.3°C90.1°F
  • 1999
Lowest temperature (1971-2000)
  • 10.2°C50.4°F
  • 1977
Greatest precipitation (1971-2000)
  • 10.8 mm0.43 inches
  • 1982
Greatest rainfall (1971-2000)
  • 10.8 mm0.43 inches
  • 1982
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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

28 July
Average high
  • 27.3°C81.1°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 33.1°C91.6°F
  • 1999
Lowest temperature (1971-2000)
  • 10.0°C50.0°F
  • 1996
Greatest precipitation (1971-2000)
  • 22.4 mm0.88 inches
  • 1981
Greatest rainfall (1971-2000)
  • 22.4 mm0.88 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

29 July
Average high
  • 27.3°C81.1°F
Average low
  • 16.8°C62.2°F
Highest temperature (1971-2000)
  • 34.9°C94.8°F
  • 1988
Lowest temperature (1971-2000)
  • 11.2°C52.2°F
  • 1996
Greatest precipitation (1971-2000)
  • 19.6 mm0.77 inches
  • 1974
Greatest rainfall (1971-2000)
  • 19.6 mm0.77 inches
  • 1974
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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

30 July
Average high
  • 27.2°C81.0°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 33.7°C92.7°F
  • 1999
Lowest temperature (1971-2000)
  • 10.1°C50.2°F
  • 1992
Greatest precipitation (1971-2000)
  • 36.2 mm1.43 inches
  • 1994
Greatest rainfall (1971-2000)
  • 36.2 mm1.43 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

31 July
Average high
  • 27.2°C81.0°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 34.4°C93.9°F
  • 1975
Lowest temperature (1971-2000)
  • 11.5°C52.7°F
  • 1978
Greatest precipitation (1971-2000)
  • 28.7 mm1.13 inches
  • 1976
Greatest rainfall (1971-2000)
  • 28.7 mm1.13 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

01 August
Average high
  • 27.2°C81.0°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 34.4°C93.9°F
  • 1975
Lowest temperature (1971-2000)
  • 10.6°C51.1°F
  • 1992
Greatest precipitation (1971-2000)
  • 18.8 mm0.74 inches
  • 1995
Greatest rainfall (1971-2000)
  • 18.8 mm0.74 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

02 August
Average high
  • 27.1°C80.8°F
Average low
  • 16.7°C62.1°F
Highest temperature (1971-2000)
  • 33.3°C91.9°F
  • 1975
Lowest temperature (1971-2000)
  • 12.2°C54.0°F
  • 1976
Greatest precipitation (1971-2000)
  • 33.8 mm1.33 inches
  • 1987
Greatest rainfall (1971-2000)
  • 33.8 mm1.33 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

03 August
Average high
  • 27.0°C80.6°F
Average low
  • 16.6°C61.9°F
Highest temperature (1971-2000)
  • 33.6°C92.5°F
  • 1988
Lowest temperature (1971-2000)
  • 10.0°C50.0°F
  • 1976
Greatest precipitation (1971-2000)
  • 46.0 mm1.81 inches
  • 1978
Greatest rainfall (1971-2000)
  • 46.0 mm1.81 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

04 August
Average high
  • 27.0°C80.6°F
Average low
  • 16.6°C61.9°F
Highest temperature (1971-2000)
  • 32.7°C90.9°F
  • 1988
Lowest temperature (1971-2000)
  • 11.8°C53.2°F
  • 2000
Greatest precipitation (1971-2000)
  • 34.0 mm1.34 inches
  • 1994
Greatest rainfall (1971-2000)
  • 34.0 mm1.34 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

05 August
Average high
  • 26.9°C80.4°F
Average low
  • 16.5°C61.7°F
Highest temperature (1971-2000)
  • 32.1°C89.8°F
  • 1988
Lowest temperature (1971-2000)
  • 10.6°C51.1°F
  • 1972
Greatest precipitation (1971-2000)
  • 14.6 mm0.57 inches
  • 1995
Greatest rainfall (1971-2000)
  • 14.6 mm0.57 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 %

Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.

Yesterday's Data

No data available for this location

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