Home   Weather   Canada   St. Thomas
Flag for Canada

Weather in St. Thomas, Ontario, Canada

Now
3 °C

Rain showers. Fog.


Feels Like: -2 °C
Forecast: 8 / -7 °C
Wind: 22 km/h from Northwest

Location: London Weather Station
Current Time: Dec 19, 2025 at 2:47:41 am
Latest Report: Dec 19, 2025 at 2:00 am
Visibility: 10 km
Pressure: 99.19 kPa
Humidity: 100%
Dew Point: 3 °C

Upcoming 5 hours

Now 3:00 am 4:00 am 5:00 am 6:00 am 7:00 am
3 °C 4 °C 2 °C 1 °C 0 °C 0 °C

See more hour-by-hour weather

Forecast for the next 48 hours

Scroll right to see more
  Friday Saturday
  Night Morning Afternoon Evening Night Morning Afternoon
Forecast
Temperature 4 °C -4 °C -5 °C -6 °C -6 °C -4 °C 2 °C
Moderate snow. Overcast. Moderate snow. Overcast. Light snow. Overcast. Light snow. Overcast. Light snow. Partly cloudy. Mostly cloudy. Light snow. Overcast.
Feels Like 1 °C -11 °C -15 °C -15 °C -11 °C -10 °C -5 °C
Wind Speed 14 km/h 31 km/h 40 km/h 34 km/h 13 km/h 22 km/h 35 km/h
Wind Direction SW
WSW
W
W
WSW
S
S
Humidity 92% 84% 72% 75% 69% 71% 61%
Dew Point 3 °C -6 °C -10 °C -10 °C -11 °C -8 °C -5 °C
Visibility 2 km 3 km 3 km 3 km 10 km 11 km 3 km
Probability of Precipitation 82% 67% 38% 36% 10% 0% 21%
Amount of Rain 7.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.3 mm
Amount of Snow 30.7 mm 31.9 mm 10.0 mm 9.4 mm 3.0 mm 0.0 mm 3.1 mm
* Updated Thursday, December 18, 2025 8:42:36 pm St. Thomas time - Weather by CustomWeather, © 2025

14 day forecast, day-by-day Hour-by-hour forecast for next week

Yesterday's weather

Passing clouds. 7 / -3 °C
Humidity: 81%. Wind: 20 km/h from Southeast

More weather last week

Currently at nearby stations

8 °C

Delhi Cs Ont: (52 km)

Cool.

More weather in Canada

Forecast for the next 2 weeks

Scroll right to see more
Sun Mon Tue Wed Thu Fri Sat
14
15
16
17
18

View historic weather

3

Detailed forecast for 14 days