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Hour-by-Hour Forecast for Sarnia, Ontario, Canada

Currently: -5 °C. Overcast. (Weather station: Sarnia Airport, Canada). See more current weather

Hour-by-hour Forecast in Sarnia — Graph

°C

Detailed Hourly Forecast — Next 24 hours

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  Conditions Comfort Precipitation
Time   Temp Weather Feels Like Wind   Humidity Chance Amount
11:00 pm
Fri, Dec 19
-6 °C Light snow. Cloudy. -12 °C 20 km/h 72% 21% 1.5 mm (snow)
0.0 mm (rain)
12:00 am
Sat, Dec 20
-6 °C Mostly cloudy. -12 °C 16 km/h 71% 10% 0.0 mm (snow)
0.0 mm (rain)
1:00 am -6 °C Broken clouds. -12 °C 14 km/h 72% 10% 0.0 mm (snow)
0.0 mm (rain)
2:00 am -6 °C Mostly cloudy. -12 °C 14 km/h 73% 10% 0.0 mm (snow)
0.0 mm (rain)
3:00 am -6 °C Cloudy. -12 °C 16 km/h 73% 9% 0.0 mm (snow)
0.0 mm (rain)
4:00 am -6 °C Overcast. -13 °C 20 km/h 72% 0% 0.0 mm (snow)
0.0 mm (rain)
5:00 am -6 °C Overcast. -13 °C 23 km/h 71% 0% 0.0 mm (snow)
0.0 mm (rain)
6:00 am -6 °C Overcast. -13 °C 27 km/h 67% 0% 0.0 mm (snow)
0.0 mm (rain)
7:00 am -5 °C Overcast. -14 °C 30 km/h 66% 0% 0.0 mm (snow)
0.0 mm (rain)
8:00 am -5 °C Overcast. -13 °C 32 km/h 68% 0% 0.0 mm (snow)
0.0 mm (rain)
9:00 am -4 °C Overcast. -12 °C 34 km/h 69% 0% 0.0 mm (snow)
0.0 mm (rain)
10:00 am -3 °C Overcast. -11 °C 36 km/h 68% 0% 0.0 mm (snow)
0.0 mm (rain)
11:00 am -1 °C Overcast. -9 °C 37 km/h 65% 10% 0.0 mm (snow)
0.0 mm (rain)
12:00 pm 0 °C Overcast. -7 °C 38 km/h 63% 10% 0.0 mm (snow)
0.0 mm (rain)
1:00 pm 1 °C Overcast. -6 °C 40 km/h 63% 10% 0.0 mm (snow)
0.0 mm (rain)
2:00 pm 1 °C Overcast. -5 °C 36 km/h 62% 10% 0.0 mm (snow)
0.0 mm (rain)
3:00 pm 2 °C Overcast. -4 °C 33 km/h 63% 10% 0.0 mm (snow)
0.0 mm (rain)
4:00 pm 2 °C Overcast. -4 °C 30 km/h 65% 10% 0.0 mm (snow)
0.0 mm (rain)
5:00 pm 2 °C Overcast. -4 °C 30 km/h 70% 10% 0.0 mm (snow)
0.0 mm (rain)
6:00 pm 2 °C Light mixture of precip. Overcast. -4 °C 31 km/h 75% 21% 0.4 mm (snow)
0.1 mm (rain)
7:00 pm 2 °C Light snow. Overcast. -5 °C 32 km/h 79% 22% 1.0 mm (snow)
0.0 mm (rain)
8:00 pm 1 °C Light snow. Cloudy. -5 °C 33 km/h 79% 21% 1.0 mm (snow)
0.0 mm (rain)
9:00 pm 0 °C Mostly cloudy. -7 °C 34 km/h 79% 10% 0.0 mm (snow)
0.0 mm (rain)
10:00 pm 0 °C Broken clouds. -7 °C 36 km/h 75% 0% 0.0 mm (snow)
0.0 mm (rain)
* Updated Friday, December 19, 2025 8:42:43 pm Sarnia time - Weather by CustomWeather, © 2025

14 days extended forecast