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St. Thomas, Ontario

72°F
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St. Thomas

Ontario

72°
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St. Thomas, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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11 AM

76°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
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Cloudy

RealFeel Shade™78°

WindW 9 mph

Air QualityFair

Max UV Index4.0 (Moderate)

Wind Gusts17 mph

Humidity81%

Indoor Humidity81% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

79°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™80°

Heat Index80°

WindW 10 mph

Air QualityFair

Max UV Index5.4 (Moderate)

Wind Gusts18 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

80°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 15%
Chevron down
Mostly cloudy

RealFeel Shade™82°

Heat Index84°

WindW 10 mph

Air QualityFair

Max UV Index6.2 (High)

Wind Gusts21 mph

Humidity70%

Indoor Humidity70% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

81°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 5%
Chevron down
Mostly cloudy

RealFeel Shade™82°

Heat Index85°

WindW 10 mph

Air QualityFair

Max UV Index5.9 (High)

Wind Gusts22 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

83°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 5%
Chevron down
Mostly cloudy

RealFeel Shade™84°

Heat Index86°

WindW 10 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts23 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

84°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 6%
Chevron down
Mostly cloudy

RealFeel Shade™85°

Heat Index87°

WindW 9 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts21 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

85°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

RealFeel Shade™87°

Heat Index89°

WindW 8 mph

Air QualityFair

Max UV Index2.6 (Moderate)

Wind Gusts21 mph

Humidity58%

Indoor Humidity58% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover77%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

83°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™84°

Heat Index86°

WindWSW 8 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts17 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover54%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

80°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 11%
Chevron down
Partly sunny

RealFeel Shade™82°

Heat Index83°

WindSW 7 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts15 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover31%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

77°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Mostly sunny

RealFeel Shade™80°

WindSW 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts13 mph

Humidity76%

Indoor Humidity76% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

75°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Mostly sunny

RealFeel Shade™77°

WindSSW 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts12 mph

Humidity82%

Indoor Humidity82% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

74°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 24%
Chevron down
Mostly clear

WindSSW 6 mph

Air QualityFair

Wind Gusts13 mph

Humidity84%

Indoor Humidity84% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms

WindS 6 mph

Air QualityFair

Wind Gusts14 mph

Humidity88%

Indoor Humidity88% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Thomas

AccuWeather's hourly forecast for St. Thomas provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 76° with a RealFeel® of 83°, cloudy with a 20% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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