Weather forecast for tomorrowSarnia, Canada

Weather forecast for tomorrow

Saturday 24. Oct 2026

  • 18°C
  • 5°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 20%
  • Precipitation: 0mm
  • Wind: 6km/hESE 114°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:54 am EDT
  • Sunset: 6:33 pm EDT
  • ▼
Tomorrow, on Saturday, October 24, golden sunshine will carry through the day.
Forecasted temperatures will peak at a comfortable 18°C and dip to a minimum of an icy 5°C.
The maximum temperature for tomorrow will be a few degrees higher than the regular high of 14.6°C in October.
Sunrise will be at 7:54 am and sunset at 6:33 pm; tomorrow's daylight will last for 10h and 39min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 17°C.
Coldest hour: 6 am 3°C.

Chance of precipitation

Highest chance: 9 am 19%.

Hourly weather forecast

  • 12 am
  • 7°C
  • Feels like:
    6°C
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 8km/hESE 118°
  • Humidity: 92%
  • Pressure: 1030mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
  • 2 am
  • 6°C
  • Feels like:
    4°C
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 6km/hESE 123°
  • Humidity: 92%
  • Pressure: 1030mbar
  • Visibility: 12km
  • UV index: 0
  • ▼
  • 4 am
  • 4°C
  • Feels like:
    3°C
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 5km/hESE 119°
  • Humidity: 93%
  • Pressure: 1030mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 6 am
  • 3°C
  • Feels like:
    3°C
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 4km/hESE 119°
  • Humidity: 96%
  • Pressure: 1031mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Sunrise: 7:54 am
  • 8 am
  • 3°C
  • Feels like:
    3°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0mm
  • Wind: 4km/hESE 111°
  • Humidity: 97%
  • Pressure: 1031mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 10 am
  • 9°C
  • Feels like:
    8°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 5km/hESE 115°
  • Humidity: 77%
  • Pressure: 1032mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 12 pm
  • 14°C
  • Feels like:
    14°C
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 5km/hESE 116°
  • Humidity: 61%
  • Pressure: 1031mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 2 pm
  • 17°C
  • Feels like:
    17°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 5km/hESE 116°
  • Humidity: 52%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 4 pm
  • 17°C
  • Feels like:
    17°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 5km/hESE 118°
  • Humidity: 50%
  • Pressure: 1029mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 6 pm
  • 15°C
  • Feels like:
    15°C
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 5km/hESE 110°
  • Humidity: 64%
  • Pressure: 1029mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 6:33 pm
  • 8 pm
  • 11°C
  • Feels like:
    11°C
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 6km/hSE 131°
  • Humidity: 82%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 10 pm
  • 10°C
  • Feels like:
    9°C
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 6km/hSSE 157°
  • Humidity: 90%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Tomorrow, on Saturday, a combination of clear and cloudy weather is forecasted.
The temperature will be between a minimum of 3°C and a maximum of 17°C. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the forecasted high will be a few degrees higher than October's typical peak temperature. Tomorrow, the low will be also a few degrees lower than the usual October value of 7.8°C.
Updated: Oct 23, 2026 @ 13:20:38 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, mainly sunny conditions will dominate the day.

Tomorrow, the maximum temperature in Sarnia will be 18°C, while the minimum temperature will be 5°C.
The maximum temperature tomorrow will be a few degrees higher than the average highest temperature in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.

On Saturday, in Sarnia, sunrise will be at 7:54 am and sunset at 6:33 pm (EDT).

In Sarnia, the length of the day tomorrow will be 10h and 39min.