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Ontario wildfires cause air quality to plummet for millions. Get the details. Chevron right

St. Thomas, Ontario

84°F
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St. Thomas, Ontario Weather
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Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Orange Warning - Air Quality

Today's Weather

Wed, Jul 15

Hazy, hot and humid; wildfire smoke will create unhealthy air quality and poor visibility at times Hi: 91°

Tonight: Partly cloudy; wildfire smoke will create unhealthy air quality and poor visibility at times Lo: 64°

Current Weather

5:35 PM

84°F
RealFeel® 90°
Mostly cloudy More Details
RealFeel Shade™ 87°
Heat Index 88°
Wind NNW 5 mph
Wind Gusts 9 mph
Air Quality Unhealthy

Looking Ahead

Smoke from distant wildfires can lead to unhealthy air quality at times through late week

St. Thomas Weather Radar

St. Thomas Weather Radar
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Clouds
Temperature

Hourly Weather

6 PM 86°
rain drop 14%
7 PM 86°
rain drop 10%
8 PM 83°
rain drop 2%
9 PM 80°
rain drop 2%
10 PM 77°
rain drop 2%
11 PM 74°
rain drop 2%
12 AM 72°
rain drop 2%
1 AM 70°
rain drop 1%
2 AM 70°
rain drop 0%
3 AM 69°
rain drop 0%
4 AM 67°
rain drop 0%
5 AM 66°
rain drop 0%

10-Day Weather Forecast

Today

7/15

91° 64°

Hazy, hot and humid

Night: Partly cloudy
40%

Thu

7/16

85° 60°

Hazy, warm and less humid

Hazy
2%

Fri

7/17

84° 71°

An afternoon thunderstorm

A thunderstorm in spots
55%

Sat

7/18

84° 62°

A shower and thunderstorm

An evening t-storm; humid
92%

Sun

7/19

81° 56°

Mostly sunny and less humid

Mainly clear
1%

Mon

7/20

77° 66°

Humid with a t-storm possible

Partly cloudy
30%

Tue

7/21

74° 59°

Humid with a t-storm in spots

Partly cloudy
55%

Wed

7/22

71° 59°

Sun and clouds; less humid

Partly cloudy
1%

Thu

7/23

72° 60°

High thin cloudiness

Mainly clear
1%

Fri

7/24

74° 61°

Sunshine and a few clouds

Clear
2%

Sun & Moon

15 hrs 01 mins
Rise 6:00 AM
Set 9:01 PM
Waxing Crescent
Rise 7:16 AM
Set 10:12 PM

Air Quality

See More
Air Quality Unhealthy

Health effects can be immediately felt by sensitive groups. Healthy individuals may experience difficulty breathing and throat irritation with prolonged exposure. Limit outdoor activity.

Allergy Outlook

See All
Dust & Dander Extreme Data is not supported in this location

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Weather Near St. Thomas:

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