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Tomorrow weather in Sarnia

Saturday, 12th September 2026
tomorrow weather
27°
Overcast
Low 15°
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The weather tomorrow in Sarnia will be a bit hotter than today, with max temperatures of 26°.

The wind tomorrow will get stronger and reach 21 km/h.

27° / 15°
Temp
11%
Rain
21 km/h
Wind
69%
Humidity

Sarnia hourly forecast for tomorrow

Scroll right to see more weather forecasts for Sarnia tomorrow
00:0001:0002:0003:0004:0005:0006:0007:0007:0608:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0019:4520:0021:0022:0023:00
weatherClearPartly cloudyOvercastOvercastOvercastOvercastOvercastCloudysunriseSunnyPartly cloudyOvercastOvercastOvercastPartly cloudySunnyPartly cloudyOvercastOvercastOvercastCloudysunsetCloudyClearClearClearNext
temperatures15.4°16.5°16.4°16.6°16.8°17°17.4°17.4°Sunrise18°18.7°21.4°23.2°24.4°25.5°25.9°26.4°26.5°26.2°25.8°25.4°Sunset24.3°23°22.3°22.1°
Feels like13.7°13.8°13.4°13.9°14.3°15.1°15.7°16.2°17°17°19.7°22°23.2°24.5°25.5°26.4°26.6°25.9°25.3°25.1°24.6°23.5°22.9°22.7°
wind speed15 km/h15 km/h17 km/h15 km/h14 km/h13 km/h13 km/h12 km/h12 km/h15 km/h17 km/h16 km/h17 km/h18 km/h19 km/h20 km/h21 km/h21 km/h21 km/h18 km/h17 km/h17 km/h17 km/h16 km/h
wind degree144°147°148°148°155°156°150°164°159°167°176°193°209°221°228°226°217°209°209°204°192°190°192°202°
wind directionSESSESSESSESSESSESSESSESSESSESSSWSSWSWSWSWSWSSWSSWSSWSSWSSSWSSW
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
chance for rain13%9%17%17%18%19%21%16%9%12%16%15%14%5%3%6%13%13%14%13%17%11%12%12%
chance for snow0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
humidity90%68%68%67%68%71%74%78%79%73%66%62%60%57%56%56%54%56%59%65%76%83%87%88%
dew point13.8°10.5°10.5°10.5°10.9°11.8°12.8°13.6°14.3°13.8°14.8°15.6°16°16.3°16.5°16.8°16.6°16.8°17.3°18.4°19.7°20.1°20.1°20°
visibility10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km10 km
cloud cover0%43%100%100%100%100%100%67%5%56%100%100%100%35%10%52%100%100%99%84%82%5%5%1%
UV000000000.20.823.64.94.42.93.53.51.70.50.20000

Weather in Sarnia tomorrow

The weather in Sarnia tomorrow is expected to be slightly warmer than usual, with a forecast temperature of 27 °C, compared to an average of 23.7 °C for 12th of September in recent years.

temperatures
temperatures
27 °C
rain
rain
0 mm
wind
wind
21 km/h
4.9
UV
Moderate
Sarnia daylight overview ☀️
Tomorrow in Sarnia, The sun rises at 07:06 and sets at 19:45, giving a total daylight duration of 12 hours and 39 minutes.
🌅Sunrise, sunset & moon times - SarniaDay length, twilight, golden hour and tonight's moon phase.Sun & Moon →

Quick links

More Sarnia weather pages

What to wear tomorrow in Sarnia? clothing recommendations

Stay comfortably stylish - your tailored guide for tomorrow's Sarnia forecast.
  • Short-sleeve shirtShort-sleeve shirt
  • ShortsShorts
  • Lightweight pantsLightweight pants
  • SunglassesSunglasses
  • Wide brimmed hatWide brimmed hat
  • SunscreenSunscreen

The weather tomorrow in Sarnia - FAQ

What is the maximum temperature for tomorrow in Sarnia?

The maximum temperature for tomorrow in Sarnia is expected to be 27° degrees. Please dress accordingly to stay comfortable throughout the day.

Will it rain tomorrow in Sarnia? 🌧️

Yes, there is a 11% chance of rain in Sarnia tomorrow. We recommend carrying an umbrella or rain gear to stay dry.

What will be the wind speed tomorrow in Sarnia? 🌀

The wind in Sarnia is expected to blow at 21 km/h. This could affect outdoor activities, so plan accordingly.

How should I dress for the weather in Sarnia tomorrow?

Given the forecast of 27 °C with a 11% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Sarnia tomorrow.

What is the sunrise and sunset time for Sarnia tomorrow?

The sun is expected to rise at 07:06 and set at 19:45 in Sarnia.

How accurate is the weather forecast Sarnia tomorrow? ✅

Sarnia weather forecast for tomorrow is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
Location coordinates Where is Sarnia?

Get accurate weather forecasts for Sarnia, located at latitude 42.979 and longitude -82.404. Stay updated with localized weather information tailored for Sarnia.

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