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St. Thomas, ON

Current Conditions

Mostly Cloudy

Mostly Cloudy

25°C76°F

Wind:
SSW 22 km/h
SSW 14 mph
Humidex:
30
86
More details
Temperature:
24.6°C
76.3° F
Pressure:
102.1 kPa
30.2 inches
Dew point:
17.1°C
62.8°F
Visibility:
24 km
15 miles
Humidity:
63%
Date:
7:00 PM EDT Saturday 8 August 2020
Observed at:
London Int'l Airport
Past 24 hour ConditionsPast 24 hour Conditions
Weather Radar
Satellite
Lightning
Alerts
Jet Stream
Hourly Forecast
Historical Weather

ForecastForecast issued: 3:30 PM EDT Saturday 8 August 2020

Detailed ForecastForecast issued: 3:30 PM EDT Saturday 8 August 2020

Clear
Tonight
17°C63°F
Clear. Low 17.
Mainly sunny
Sun, 9 Aug
29°C84°F
Mainly sunny. Wind becoming southwest 20 km/h near noon. High 29. Humidex 38. UV index 9 or very high.
Night:  A few clouds. Wind southwest 20 km/h becoming light in the evening. Low 21.
Sunny
Mon, 10 Aug
28°C82°F
Sunny. High 28.
Night:  Cloudy periods with 60 percent chance of showers. Low 20.
Chance of showers
Tue, 11 Aug
26°C79°F
Cloudy with 60 percent chance of showers. High 26.
Night:  Cloudy with 30 percent chance of showers. Low 19.
Chance of showers
Wed, 12 Aug
27°C81°F
Cloudy with 30 percent chance of showers. High 27.
Night:  Cloudy with 30 percent chance of showers. Low 20.
Chance of showers
Thu, 13 Aug
26°C79°F
A mix of sun and cloud with 40 percent chance of showers. High 26.
Night:  Cloudy with 60 percent chance of showers. Low 21.
Chance of showers
Fri, 14 Aug
27°C81°F
A mix of sun and cloud with 30 percent chance of showers. High 27.
Normals:
Max 26°C.79°F. Min 16°C.61°F.
Sunrise:
6:24 EDT
Sunset:
20:37 EDT

Averages and extremes

03 August
Average high
  • 26.2°C79.2°F
Average low
  • 14.7°C58.5°F
Highest temperature (1940-2002)
  • 35.6°C96.1°F
  • 1955
Lowest temperature (1940-2002)
  • 7.8°C46.0°F
  • 1976
Greatest precipitation (1940-2002)
  • 37.3 mm1.47 inches
  • 1964
Greatest rainfall (1940-2002)
  • 37.3 mm1.47 inches
  • 1964
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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
  • 26.2°C79.2°F
Average low
  • 14.6°C58.3°F
Highest temperature (1940-2002)
  • 33.9°C93.0°F
  • 1944
Lowest temperature (1940-2002)
  • 7.2°C45.0°F
  • 1951
Greatest precipitation (1940-2002)
  • 26.2 mm1.03 inches
  • 1940
Greatest rainfall (1940-2002)
  • 26.2 mm1.03 inches
  • 1940
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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
  • 26.1°C79.0°F
Average low
  • 14.6°C58.3°F
Highest temperature (1940-2002)
  • 33.3°C91.9°F
  • 1955
Lowest temperature (1940-2002)
  • 5.6°C42.1°F
  • 1951
Greatest precipitation (1940-2002)
  • 37.1 mm1.46 inches
  • 1961
Greatest rainfall (1940-2002)
  • 37.1 mm1.46 inches
  • 1961
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

06 August
Average high
  • 26.1°C79.0°F
Average low
  • 14.6°C58.3°F
Highest temperature (1940-2002)
  • 34.7°C94.5°F
  • 2001
Lowest temperature (1940-2002)
  • 7.1°C44.8°F
  • 1994
Greatest precipitation (1940-2002)
  • 35.1 mm1.38 inches
  • 1962
Greatest rainfall (1940-2002)
  • 35.1 mm1.38 inches
  • 1962
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

07 August
Average high
  • 26.0°C78.8°F
Average low
  • 14.5°C58.1°F
Highest temperature (1940-2002)
  • 33.8°C92.8°F
  • 2001
Lowest temperature (1940-2002)
  • 8.2°C46.8°F
  • 1989
Greatest precipitation (1940-2002)
  • 59.7 mm2.35 inches
  • 1972
Greatest rainfall (1940-2002)
  • 59.7 mm2.35 inches
  • 1972
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

08 August
Average high
  • 26.0°C78.8°F
Average low
  • 14.4°C57.9°F
Highest temperature (1940-2002)
  • 37.0°C98.6°F
  • 2001
Lowest temperature (1940-2002)
  • 8.2°C46.8°F
  • 1989
Greatest precipitation (1940-2002)
  • 17.0 mm0.67 inches
  • 1986
Greatest rainfall (1940-2002)
  • 17.0 mm0.67 inches
  • 1986
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

09 August
Average high
  • 25.9°C78.6°F
Average low
  • 14.4°C57.9°F
Highest temperature (1940-2002)
  • 34.7°C94.5°F
  • 2001
Lowest temperature (1940-2002)
  • 8.3°C46.9°F
  • 1972
Greatest precipitation (1940-2002)
  • 44.4 mm1.75 inches
  • 2000
Greatest rainfall (1940-2002)
  • 44.4 mm1.75 inches
  • 2000
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

10 August
Average high
  • 25.8°C78.4°F
Average low
  • 14.3°C57.7°F
Highest temperature (1940-2002)
  • 35.0°C95.0°F
  • 1944
Lowest temperature (1940-2002)
  • 7.2°C45.0°F
  • 1972
Greatest precipitation (1940-2002)
  • 19.8 mm0.78 inches
  • 1955
Greatest rainfall (1940-2002)
  • 19.8 mm0.78 inches
  • 1955
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

11 August
Average high
  • 25.7°C78.3°F
Average low
  • 14.3°C57.7°F
Highest temperature (1940-2002)
  • 34.4°C93.9°F
  • 1944
Lowest temperature (1940-2002)
  • 6.7°C44.1°F
  • 1965
Greatest precipitation (1940-2002)
  • 38.9 mm1.53 inches
  • 1964
Greatest rainfall (1940-2002)
  • 38.9 mm1.53 inches
  • 1964
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

12 August
Average high
  • 25.7°C78.3°F
Average low
  • 14.2°C57.6°F
Highest temperature (1940-2002)
  • 33.3°C91.9°F
  • 1944
Lowest temperature (1940-2002)
  • 6.1°C43.0°F
  • 1968
Greatest precipitation (1940-2002)
  • 23.0 mm0.91 inches
  • 1989
Greatest rainfall (1940-2002)
  • 23.0 mm0.91 inches
  • 1989
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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.

13 August
Average high
  • 25.6°C78.1°F
Average low
  • 14.1°C57.4°F
Highest temperature (1940-2002)
  • 33.3°C91.9°F
  • 1947
Lowest temperature (1940-2002)
  • 6.1°C43.0°F
  • 1966
Greatest precipitation (1940-2002)
  • 30.2 mm1.19 inches
  • 1994
Greatest rainfall (1940-2002)
  • 30.2 mm1.19 inches
  • 1994
Greatest snowfall (1940-2002)
  • 0.0 cm0.0 inches
Most snow on the ground (1955-2002)
  • 0.0 cm0.0 inches
Monthly frequency of precipitation
  • 33 %

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
Max:
26.5 °C79.7 °F
Min:
13.1 °C55.6 °F
Total Precipitation:
0.0 mm0.00 in

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