Sarnia
Today
Today weather in Sarnia
Monday, 20th July 2026
30°
Sunny
Low 12°
Sarnia will have a warm day Today with temperatures ascending to 29 °C and descending to around 12 °C after sunset. It'll be quite breezy in Sarnia Today with average wind speeds of 24 km/h. There's a slight chance of rain at 5%.
30° / 12°
Temp
5%
Rain
24 km/h
Wind
67%
Humidity
Sarnia Weather Pages
Sarnia hourly forecast for today
Scroll right to see more weather forecasts for Sarnia today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 06:08 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 21:03 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  |  | | | | | | | | | | | | | | |  | | | Next |
| temperatures | 15.8° | 14.9° | 14.3° | 13.7° | 13.1° | 12.7° | 12.2° | Sunrise | 12.5° | 16.1° | 19.7° | 22.5° | 26.7° | 28.7° | 29.6° | 25.7° | 26.3° | 26.4° | 25.6° | 24.6° | 23.5° | 22.4° | 20.6° | Sunset | 19.8° | 20° | |
| feels like | 11.2° | 10.4° | 9.7° | 8.9° | 13.7° | 8.1° | 9.2° | 8.8° | 10.6° | 14.2° | 16.8° | 26.1° | 28.9° | 29.7° | 21.5° | 24° | 24.3° | 19.7° | 15.8° | 14.8° | 13.7° | 12.1° | 11.4° | 11.3° | |||
| wind speed | 3 km/h | 3 km/h | 3 km/h | 4 km/h | 4 km/h | 3 km/h | 7 km/h | 8 km/h | 8 km/h | 8 km/h | 9 km/h | 10 km/h | 13 km/h | 15 km/h | 16 km/h | 17 km/h | 22 km/h | 25 km/h | 25 km/h | 24 km/h | 24 km/h | 23 km/h | 23 km/h | 24 km/h | |||
| wind degree | 351° | 270° | 281° | 313° | 325° | 246° | 235° | 210° | 192° | 204° | 214° | 196° | 203° | 210° | 213° | 201° | 198° | 185° | 185° | 181° | 181° | 181° | 178° | 176° | |||
| wind direction | N | W | W | NW | NW | WSW | SW | SSW | SSW | SSW | SW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | S | S | S | S | S | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 9% | 11% | 12% | 13% | 15% | 15% | 16% | 18% | 7% | 4% | 3% | 1% | 1% | 1% | 2% | 2% | 2% | 2% | 5% | 6% | 4% | 5% | 6% | 7% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 80% | 83% | 86% | 88% | 94% | 91% | 91% | 93% | 75% | 61% | 55% | 47% | 46% | 44% | 47% | 46% | 46% | 47% | 52% | 57% | 63% | 68% | 71% | 73% | |||
| dew point | 12.4° | 12° | 11.9° | 11.7° | 11.7° | 11.2° | 10.9° | 11.4° | 11.7° | 12.1° | 13.1° | 14.6° | 16.1° | 16.2° | 13.7° | 13.9° | 14° | 13.6° | 14.2° | 14.6° | 14.9° | 14.6° | 14.4° | 15° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 14 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 1% | 4% | 9% | 13% | 0% | 18% | 24% | 32% | 1% | 0% | 0% | 0% | 3% | 7% | 5% | 11% | 16% | 9% | 48% | 47% | 6% | 0% | 3% | 3% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.7 | 1.8 | 3.3 | 4.9 | 6.3 | 7.8 | 7.5 | 6.2 | 4.7 | 2.8 | 1.4 | 0.5 | 0.1 | 0 | 0 | 0 |
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View of Sarnia today
Explore Sarnia live webcam feed to see how the weather is shaping up today in Sarnia. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from Sarnia today.
Weather in Sarnia today
The weather in Sarnia today is expected to be much warmer than usual, with a forecast temperature of 30 °C, compared to an average of 23.7 °C for 20th of July in recent years.
temperatures
30 °C
rain
0 mm
wind
24 km/h
UV
High
Sarnia daylight overview ☀️
Today in Sarnia, The sun rises at 06:08 and sets at 21:03, giving a total daylight duration of 14 hours and 55 minutes.
Quick links
More Sarnia weather pages
What to wear today in Sarnia? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Sarnia forecast.
Short-sleeve shirt
Shorts
Lightweight trousers
Sunglasses
Wide brimmed hat
Sunscreen
The weather today in Sarnia - FAQ
What is the maximum temperature for today in Sarnia?
The maximum temperature for today in Sarnia is expected to be 30° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Sarnia? 🌧️
Yes, there is a 5% chance of rain in Sarnia today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Sarnia? 🌀
The wind in Sarnia is expected to blow at 24 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Sarnia today?
Given the forecast of 30 °C with a 5% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Sarnia today.
What is the sunrise and sunset time for Sarnia today?
The sun is expected to rise at 06:08 and set at 21:03 in Sarnia.
How accurate is the weather forecast Sarnia today? ✅
Sarnia weather forecast for today 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.
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