St. Thomas, ON
Current Conditions

Light Snow
- Wind:
- W 7 km/h
- W 4 mph
- Wind Chill:
- -4
- 25
More details
- Temperature:
- -1.2°C
- 29.8° F
- Pressure:
- 100.5 kPa
- 29.7 inches
- Dew point:
- -1.6°C
- 29.1°F
- Visibility:
- 15 km
- 9 miles
- Humidity:
- 98%
- Date:
- 11:00 PM EST Sunday 17 January 2021
- Observed at:
- London Int'l Airport
ForecastForecast issued: 3:30 PM EST Sunday 17 January 2021
18 Jan

0°C32°F
40%
Chance of flurries

-3°C27°F
30%
Chance of flurries
19 Jan

-3°C27°F
40%
Chance of flurries

-7°C19°F
40%
Chance of flurries
20 Jan

-4°C25°F
30%
Chance of flurries

-6°C21°F
30%
Chance of flurries
21 Jan

1°C34°F
60%
Chance of snow

-3°C27°F
Cloudy
22 Jan

-1°C30°F
Cloudy

-6°C21°F
Cloudy
23 Jan

-2°C28°F
Cloudy
date | Detailed Forecast |
---|---|
Tonight | Periods of snow ending near midnight then cloudy with 40 percent chance of flurries. Local amount 2 cm. Temperature steady near zero. |
Mon, 18 Jan | Cloudy. 40 percent chance of flurries in the morning. A few flurries beginning near noon. Local amount 2 cm. Wind up to 15 km/h. Temperature steady near zero. Wind chill minus 5 in the morning. UV index 1 or low. |
Night | A few flurries ending near midnight then cloudy with 30 percent chance of flurries. Local amount 2 cm. Wind becoming west 20 km/h gusting to 40 near midnight then light before morning. Temperature steady near minus 3. Wind chill near minus 9. |
Tue, 19 Jan | Cloudy with 40 percent chance of flurries. High minus 3. |
Night | Cloudy with 40 percent chance of flurries. Low minus 7. |
Wed, 20 Jan | Cloudy with 30 percent chance of flurries. High minus 4. |
Night | Cloudy with 30 percent chance of flurries. Low minus 6. |
Thu, 21 Jan | Cloudy with 60 percent chance of snow. High plus 1. |
Night | Cloudy. Low minus 3. |
Fri, 22 Jan | Cloudy. High minus 1. |
Night | Cloudy. Low minus 6. |
Sat, 23 Jan | Cloudy. High minus 2. |
Normals | Max -2°C.28°F. Min -9°C.16°F. | Sunrise | 7:52 EST | Sunset | 17:18 EST |
---|
ForecastForecast issued: 3:30 PM EST Sunday 17 January 2021
Detailed ForecastForecast issued: 3:30 PM EST Sunday 17 January 2021

0°C32°F

-3°C27°F

-4°C25°F

1°C34°F

-1°C30°F

-2°C28°F
- Normals:
- Max -2°C.28°F. Min -9°C.16°F.
- Sunrise:
- 7:52 EST
- Sunset:
- 17:18 EST
Averages and extremes
12 January
- Average high
- -2.4°C27.7°F
- Average low
- -9.9°C14.2°F
- Highest temperature (1941-2002)
- 11.2°C52.2°F
- 1995
- Lowest temperature (1941-2002)
- -25.0°C-13.0°F
- 1966
- Greatest precipitation (1941-2017)
- 24.2 mm0.95 inches
- 2013
- Greatest rainfall (1941-2017)
- 24.2 mm0.95 inches
- 2013
- Greatest snowfall (1941-2017)
- 8.2 cm3.23 inches
- 1999
- Most snow on the ground (1955-2017)
- 58.0 cm22.83 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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 January
- Average high
- -2.4°C27.7°F
- Average low
- -10.0°C14.0°F
- Highest temperature (1941-2002)
- 14.0°C57.2°F
- 1995
- Lowest temperature (1941-2002)
- -23.7°C-10.7°F
- 1977
- Greatest precipitation (1941-2017)
- 17.0 mm0.67 inches
- 1976
- Greatest rainfall (1941-2017)
- 10.0 mm0.39 inches
- 2005
- Greatest snowfall (1941-2017)
- 17.0 cm6.69 inches
- 1976
- Most snow on the ground (1955-2017)
- 58.0 cm22.83 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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.
14 January
- Average high
- -2.5°C27.5°F
- Average low
- -10.1°C13.8°F
- Highest temperature (1941-2002)
- 14.3°C57.7°F
- 1995
- Lowest temperature (1941-2002)
- -25.0°C-13.0°F
- 1970
- Greatest precipitation (1941-2017)
- 46.0 mm1.81 inches
- 1968
- Greatest rainfall (1941-2017)
- 28.4 mm1.12 inches
- 1968
- Greatest snowfall (1941-2017)
- 24.0 cm9.45 inches
- 1992
- Most snow on the ground (1955-2017)
- 56.0 cm22.05 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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.
15 January
- Average high
- -2.5°C27.5°F
- Average low
- -10.1°C13.8°F
- Highest temperature (1941-2002)
- 12.0°C53.6°F
- 1995
- Lowest temperature (1941-2002)
- -28.4°C-19.1°F
- 1984
- Greatest precipitation (1941-2017)
- 23.2 mm0.91 inches
- 1995
- Greatest rainfall (1941-2017)
- 23.2 mm0.91 inches
- 1995
- Greatest snowfall (1941-2017)
- 15.2 cm5.98 inches
- 1968
- Most snow on the ground (1955-2017)
- 53.0 cm20.87 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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.
16 January
- Average high
- -2.6°C27.3°F
- Average low
- -10.2°C13.6°F
- Highest temperature (1941-2002)
- 10.6°C51.1°F
- 1949
- Lowest temperature (1941-2002)
- -28.8°C-19.8°F
- 1984
- Greatest precipitation (1941-2017)
- 12.6 mm0.5 inches
- 1996
- Greatest rainfall (1941-2017)
- 12.6 mm0.5 inches
- 1996
- Greatest snowfall (1941-2017)
- 10.4 cm4.09 inches
- 1954
- Most snow on the ground (1955-2017)
- 48.0 cm18.9 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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.
17 January
- Average high
- -2.6°C27.3°F
- Average low
- -10.3°C13.5°F
- Highest temperature (1941-2002)
- 10.6°C51.1°F
- 1952
- Lowest temperature (1941-2002)
- -28.9°C-20.0°F
- 1976
- Greatest precipitation (1941-2017)
- 16.5 mm0.65 inches
- 2006
- Greatest rainfall (1941-2017)
- 14.5 mm0.57 inches
- 2006
- Greatest snowfall (1941-2017)
- 13.2 cm5.2 inches
- 1970
- Most snow on the ground (1955-2017)
- 41.0 cm16.14 inches
- 1969
- Monthly frequency of precipitation
- 61 %
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.
18 January
- Average high
- -2.6°C27.3°F
- Average low
- -10.3°C13.5°F
- Highest temperature (1941-2002)
- 12.4°C54.3°F
- 1996
- Lowest temperature (1941-2002)
- -30.6°C-23.1°F
- 1976
- Greatest precipitation (1941-2017)
- 27.9 mm1.1 inches
- 1949
- Greatest rainfall (1941-2017)
- 27.9 mm1.1 inches
- 1949
- Greatest snowfall (1941-2017)
- 14.2 cm5.59 inches
- 1960
- Most snow on the ground (1955-2017)
- 38.0 cm14.96 inches
- 1976
- Monthly frequency of precipitation
- 61 %
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.
19 January
- Average high
- -2.6°C27.3°F
- Average low
- -10.4°C13.3°F
- Highest temperature (1941-2002)
- 8.4°C47.1°F
- 1996
- Lowest temperature (1941-2002)
- -29.1°C-20.4°F
- 1994
- Greatest precipitation (1941-2017)
- 20.2 mm0.8 inches
- 1987
- Greatest rainfall (1941-2017)
- 9.9 mm0.39 inches
- 1986
- Greatest snowfall (1941-2017)
- 20.0 cm7.87 inches
- 2004
- Most snow on the ground (1955-2017)
- 38.0 cm14.96 inches
- 1976
- Monthly frequency of precipitation
- 61 %
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.
20 January
- Average high
- -2.7°C27.1°F
- Average low
- -10.4°C13.3°F
- Highest temperature (1941-2002)
- 10.6°C51.1°F
- 1951
- Lowest temperature (1941-2002)
- -26.1°C-15.0°F
- 1970
- Greatest precipitation (1941-2017)
- 27.7 mm1.09 inches
- 1959
- Greatest rainfall (1941-2017)
- 25.5 mm1.0 inches
- 1995
- Greatest snowfall (1941-2017)
- 12.1 cm4.76 inches
- 1978
- Most snow on the ground (1955-2017)
- 46.0 cm18.11 inches
- 1976
- Monthly frequency of precipitation
- 61 %
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.
21 January
- Average high
- -2.7°C27.1°F
- Average low
- -10.4°C13.3°F
- Highest temperature (1941-2002)
- 9.4°C48.9°F
- 1959
- Lowest temperature (1941-2002)
- -25.6°C-14.1°F
- 1984
- Greatest precipitation (1941-2017)
- 11.4 mm0.45 inches
- 1993
- Greatest rainfall (1941-2017)
- 11.4 mm0.45 inches
- 1993
- Greatest snowfall (1941-2017)
- 9.4 cm3.7 inches
- 1955
- Most snow on the ground (1955-2017)
- 45.0 cm17.72 inches
- 2004
- Monthly frequency of precipitation
- 61 %
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.
22 January
- Average high
- -2.7°C27.1°F
- Average low
- -10.5°C13.1°F
- Highest temperature (1941-2002)
- 8.3°C46.9°F
- 1972
- Lowest temperature (1941-2002)
- -23.3°C-9.9°F
- 1976
- Greatest precipitation (1941-2017)
- 22.1 mm0.87 inches
- 1957
- Greatest rainfall (1941-2017)
- 15.1 mm0.59 inches
- 1999
- Greatest snowfall (1941-2017)
- 12.2 cm4.8 inches
- 1976
- Most snow on the ground (1955-2017)
- 58.0 cm22.83 inches
- 1976
- Monthly frequency of precipitation
- 61 %
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:
- 1.9 °C35.4 °F
- Min:
- -1.4 °C29.5 °F
- Total Precipitation:
- 0.0 mm0.00 in
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