Weather in Sarnia, Canada 🇨🇦
Weather Forecast in Sarnia
In Sarnia right now it is 19°C and clear, feeling like 19°C. Humidity is 100% with winds around 11 km/h, and the UV index is 0 (low). Over the next few days, temperatures in Sarnia range from about 18°C to 29°C.
Hourly Forecast for Sarnia
14-Day Forecast for Sarnia
Sunny
Sunny
Sunny
Patchy rain nearby
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Partly Cloudy
Sunny
Patchy rain nearby
Additional Forecasts for Sarnia
Air Quality
Historical Weather
Weather Forecasts for Other Cities in Canada
Best Time to Be Outside in Sarnia Today
The most comfortable window in Sarnia today looks like 21:00 to 21:00, when it is around 21°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Sarnia
What is the temperature in Sarnia right now?
The current temperature in Sarnia is 19°C (66°F), clear (feels like 19°C).
What's the weather like in Sarnia right now?
Conditions in Sarnia right now: Clear, humidity 100%, wind 11 km/h NE.
What is today's forecast for Sarnia?
Today in Sarnia: high 29°C, low 18°C, sunny. Chance of rain: 10%.
What is the 7-day weather forecast for Sarnia?
Daily highs and lows for Sarnia:
- 2026-07-07: 29°C / 18°C
- 2026-07-08: 29°C / 18°C
- 2026-07-09: 28°C / 19°C
- 2026-07-10: 23°C / 19°C
- 2026-07-11: 27°C / 18°C
- 2026-07-12: 26°C / 20°C
- 2026-07-13: 28°C / 18°C
Is it going to rain in Sarnia today?
There is a 10% chance of rain in Sarnia today.
What is the wind speed in Sarnia right now?
Wind in Sarnia is currently 11 km/h (7 mph) from the NE.
What is the UV index in Sarnia right now?
The UV index in Sarnia is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
