Sarnia weather — 10-day forecast
Temperature, rain, wind and feels-like in Sarnia, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 12:00 · NOAA HRRR model
27 °C
Overcast
Feels like 29 °C
Next 12 h
- 1227°
- 1328°
- 1430°
- 1530°
- 1631°
- 1731°
- 1831°
- 1930°
- 2027°
- 20:44Sunset
- 2126°
- 2225°
- 2325°
- 0024°
↑ 31°17:00↓ 24°00:00
- Humidity
- 66 %
- Dew point
- 20 °C
- Gusts
- 12.4 km/h
- Clouds
- 100 %
- Pressure
- 1,018 hPa
- UV
- 4 · moderate
- Storm
- possible
Grid point 1.5 km away · 3.0 km grid · elevation 183 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 105.2µg/m³▲
- PM2.5
- 5.6µg/m³
- PM10
- 5.8µg/m³
- Nitrogen dioxide
- 3.4µg/m³
- Sulphur dioxide
- 4.2µg/m³
- Carbon monoxide
- 180.0µg/m³
- Dust (AOD)
- 0.01
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Partly cloudy58 %
31°
21°
Sat
Mainly clear98 %
33°
22°
Sun
Partly cloudy8 %
26°
16°
Mon
Light showers82 %
25°
21°
Tue
Light drizzle82 %
25°
22°
Wed
Mainly clear
28°
17°
Thu
Mainly clear
27°
19°
Fri
Mainly clear
27°
16°
Sat
Thunderstorm1 mm
30°
21°
Sun
Light drizzle1 mm
21°
17°
Gusts · Sun 52.0 km/h
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 06:28
- Daylight
- 14 h 16
- Sunset
- 20:44
Radiation · 18.1 MJ/m²
Sea state
Sea state at the marine grid point closest to the city.
Significant height: the mean of the highest third of waves. Individual waves reach about twice it.
Data: ECMWF
Today in Sarnia the mean temperature will be 27.2 °C — +5.6 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Sarnia