Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

Sarnia, Ontario

46°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Sarnia

Ontario

46°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Sarnia, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

Hourly

Daily Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

1 AM

43°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 14%
Chevron down
Intermittent clouds

WindSSW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity72%

Indoor Humidity29% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover51%

Visibility10 mi

Cloud Ceiling18700 ft

2 AM

43°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

WindSSW 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity77%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling14700 ft

3 AM

42°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

WindSW 10 mph

Air QualityFair

Wind Gusts12 mph

Humidity82%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover60%

Visibility10 mi

Cloud Ceiling15900 ft

4 AM

42°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly cloudy

WindSW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity85%

Indoor Humidity32% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

41°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly cloudy

WindSW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity88%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

41°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly cloudy

WindSW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity89%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

40°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 1%
Chevron down
Mostly cloudy

WindSSW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity92%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling15900 ft

8 AM

42°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™39°

WindSSW 6 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts8 mph

Humidity88%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

45°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™42°

WindSSW 6 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts8 mph

Humidity84%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

48°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™45°

WindSW 7 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts8 mph

Humidity81%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

52°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™49°

WindSW 7 mph

Air QualityFair

Max UV Index3.9 (Moderate)

Wind Gusts8 mph

Humidity78%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

53°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™50°

WindWSW 7 mph

Air QualityFair

Max UV Index4.6 (Moderate)

Wind Gusts8 mph

Humidity76%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

55°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 10%
Chevron down
Partly sunny

RealFeel Shade™52°

WindN 7 mph

Air QualityFair

Max UV Index4.9 (Moderate)

Wind Gusts8 mph

Humidity73%

Indoor Humidity46% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

52°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™48°

WindN 7 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts8 mph

Humidity81%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.08 in

Visibility5 mi

Cloud Ceiling1100 ft

3 PM

50°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™45°

WindN 9 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts10 mph

Humidity84%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1100 ft

4 PM

47°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 45%
Chevron down
Cloudy

RealFeel Shade™42°

WindNNE 9 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts12 mph

Humidity85%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1100 ft

5 PM

44°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™38°

WindNNE 10 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts13 mph

Humidity87%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1100 ft

6 PM

42°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 55%
Chevron down
Thunderstorms

RealFeel Shade™30°

WindN 12 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts14 mph

Humidity89%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover94%

Rain0.08 in

Visibility5 mi

Cloud Ceiling900 ft

7 PM

40°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™30°

WindN 13 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts16 mph

Humidity91%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling700 ft

8 PM

38°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindN 14 mph

Air QualityFair

Wind Gusts17 mph

Humidity90%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility5 mi

Cloud Ceiling500 ft

9 PM

36°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindN 14 mph

Air QualityFair

Wind Gusts18 mph

Humidity92%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility5 mi

Cloud Ceiling700 ft

10 PM

36°
RealFeel® 24°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 39%
Chevron down
Cloudy

WindN 15 mph

Air QualityFair

Wind Gusts18 mph

Humidity92%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility5 mi

Cloud Ceiling900 ft

11 PM

36°
RealFeel® 24°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindN 15 mph

Air QualityFair

Wind Gusts20 mph

Humidity90%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility5 mi

Cloud Ceiling1100 ft

Further Ahead

Tomorrow

Saturday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Atlantic hurricane season forecast 2026: 11-16 named storms predicted

18 hours ago

Weather Forecasts

April to kick off with surge of spring warmth for millions in East

12 hours ago

Severe Weather

Midwest poised for more severe weather, flooding downpours

9 hours ago

Climate

Colorado towns enact water restrictions as drought forecast looks grim

13 hours ago

Weather Forecasts

Florida has been the “driest in decades” as widespread drought worsens

17 hours ago

More Stories

Featured Stories

Recreation

Wildfire continues burning at America’s most popular National Park

9 hours ago

Astronomy

What’s behind the recent spike in meteor sightings across the US?

9 hours ago

Astronomy

NASA announces new Mars mission, reshapes goals on the moon

15 hours ago

Recreation

When will DC cherry blossoms reach peak bloom? Very soon, experts say

1 day ago

Weather News

First tornado forecast: Scientists who dared to forecast 'act of God'

1 day ago

World North America Canada Ontario Sarnia

Weather Near Sarnia:

  • Detroit, MI
  • London, Ontario
  • Windsor, Ontario
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...