Weather forecast for 10 daysSarnia, Canada
10-day overview
Daily temperatures
Warmest day: Sunday 21°C.
Coldest day: Tuesday 27.10. 12°C.
Coldest day: Tuesday 27.10. 12°C.
Chance of precipitation
Highest chance: Wednesday 28.10. 24%.
Long-term weather forecast
- Tuesday
- 20. Oct 2026
- min.
- 2°C
Clear
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 12km/hE 92°
- Humidity: 79%
- UV index: 0
- Sunrise: 7:49 am EDT
- Sunset: 6:39 pm EDT
- details ▼
- Wednesday
- 21. Oct 2026
- 19°C
- 4°C
Sunny
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 7km/hESE 118°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:50 am EDT
- Sunset: 6:37 pm EDT
- details ▼
- Thursday
- 22. Oct 2026
- 18°C
- 4°C
Mostly Sunny
- Precip. probability: 11%
- Precipitation: 0mm
- Wind: 17km/hN 351°
- Humidity: 78%
- UV index: 3
- Sunrise: 7:51 am EDT
- Sunset: 6:36 pm EDT
- details ▼
- Friday
- 23. Oct 2026
- 18°C
- 3°C
Sunny
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 10km/hESE 116°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:53 am EDT
- Sunset: 6:34 pm EDT
- details ▼
- Saturday
- 24. Oct 2026
- 19°C
- 5°C
Sunny
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 10km/hSE 145°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:54 am EDT
- Sunset: 6:33 pm EDT
- details ▼
- Sunday
- 25. Oct 2026
- 21°C
- 9°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 15km/hSSW 193°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:55 am EDT
- Sunset: 6:31 pm EDT
- details ▼
- Monday
- 26. Oct 2026
- 18°C
- 7°C
Mostly Cloudy
- Precip. probability: 10%
- Precipitation: 0mm
- Wind: 13km/hNNW 332°
- Humidity: 67%
- UV index: 2
- Sunrise: 7:56 am EDT
- Sunset: 6:30 pm EDT
- details ▼
- Tuesday
- 27. Oct 2026
- 12°C
- 4°C
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0mm
- Wind: 17km/hNNE 22°
- Humidity: 69%
- UV index: 2
- Sunrise: 7:58 am EDT
- Sunset: 6:28 pm EDT
- details ▼
- Wednesday
- 28. Oct 2026
- 15°C
- 4°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 13km/hSE 125°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:59 am EDT
- Sunset: 6:27 pm EDT
- details ▼
- Thursday
- 29. Oct 2026
- 16°C
- 4°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 17km/hSW 228°
- Humidity: 62%
- UV index: 3
- Sunrise: 8:00 am EDT
- Sunset: 6:26 pm EDT
- details ▼
Forecasts for the ten-day outlook show that a combination of cloudy and bright weather is expected.
Rain is not forecasted in Sarnia in the upcoming days.
Temperature fluctuation will be noticeable in the upcoming days. Forecast highs will fluctuate between 12°C and 21°C, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 2°C up to 9°C.
Sunday is expected to be the warmest, reaching up to 21°C; the coldest day will be next Tuesday, with a maximum of 12°C.
Rain is not forecasted in Sarnia in the upcoming days.
Temperature fluctuation will be noticeable in the upcoming days. Forecast highs will fluctuate between 12°C and 21°C, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 2°C up to 9°C.
Sunday is expected to be the warmest, reaching up to 21°C; the coldest day will be next Tuesday, with a maximum of 12°C.
Updated: Oct 20, 2026 @ 19:45:38 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
In Sarnia, a combination of overcast and clear weather is predicted for the next ten days.
The maximum temperature will range between 12°C and 21°C, as the minimum temperature will be between 2°C and 9°C.
With the maximum temperature of 21°C, Sunday will be the warmest day. The coldest day will be next Tuesday, with a maximum of 12°C.
On Saturday, sunny and dry conditions are anticipated.
On Saturday, the highest temperature will be 19°C, while the lowest temperature will be 5°C.
On Sunday, a partly cloudy outlook will keep the sky interesting throughout the day.
On Sunday, the highest temperature will be 21°C, while the lowest temperature will be 9°C.
