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St. Thomas, Ontario

62°F
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St. Thomas

Ontario

62°
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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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4 AM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 32%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

WindSW 8 mph

Air QualityFair

Wind Gusts20 mph

Humidity90%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling10400 ft

5 AM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 28%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

WindSW 8 mph

Air QualityFair

Wind Gusts20 mph

Humidity91%

Indoor Humidity74% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling10400 ft

6 AM

62°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 28%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™59°

WindSSW 8 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts20 mph

Humidity92%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling10400 ft

7 AM

61°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™59°

WindSSW 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts20 mph

Humidity95%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

8 AM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™61°

WindSSW 10 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts18 mph

Humidity89%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling10400 ft

9 AM

66°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 57%
Chevron down
Thunderstorms
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™61°

WindSSW 12 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts21 mph

Humidity83%

Indoor Humidity77% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.06 in

Visibility5 mi

Cloud Ceiling4000 ft

10 AM

69°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 57%
Chevron down
Thunderstorms
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™63°

WindSSW 13 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts24 mph

Humidity76%

Indoor Humidity76% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.06 in

Visibility5 mi

Cloud Ceiling4000 ft

11 AM

72°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™69°

WindSSW 14 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts27 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

75°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™72°

WindSSW 16 mph

Air QualityFair

Max UV Index4.6 (Moderate)

Wind Gusts29 mph

Humidity66%

Indoor Humidity66% (Humid)

Dew Point63° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

78°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™75°

WindSSW 17 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts30 mph

Humidity61%

Indoor Humidity61% (Humid)

Dew Point64° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

81°
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 34%
Chevron down
Mostly sunny
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™78°

Heat Index83°

WindSW 17 mph

Air QualityFair

Max UV Index8.6 (Very High)

Wind Gusts30 mph

Humidity57%

Indoor Humidity57% (Humid)

Dew Point65° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

82°
RealFeel® 85°
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 34%
Chevron down
Mostly sunny
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™79°

Heat Index84°

WindSW 17 mph

Air QualityFair

Max UV Index6.6 (High)

Wind Gusts30 mph

Humidity56%

Indoor Humidity56% (Humid)

Dew Point65° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

84°
RealFeel® 85°
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 40%
Chevron down
Mostly sunny
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™81°

Heat Index86°

WindSW 16 mph

Air QualityFair

Max UV Index4.6 (Moderate)

Wind Gusts31 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point65° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

81°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 61%
Chevron down
Partly sunny w/ t-storms
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™77°

Heat Index84°

WindSW 15 mph

Air QualityFair

Max UV Index3.2 (Moderate)

Wind Gusts33 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Rain0.07 in

Visibility5 mi

Cloud Ceiling30000 ft

6 PM

79°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Partly sunny
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™77°

WindSW 14 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts33 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

75°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 61%
Chevron down
Partly sunny w/ t-storms
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™71°

WindSSW 12 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts30 mph

Humidity78%

Indoor Humidity78% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover45%

Rain0.07 in

Visibility5 mi

Cloud Ceiling30000 ft

8 PM

73°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

RealFeel Shade™68°

WindSSW 10 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts27 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.22 in

Visibility3 mi

Cloud Ceiling2000 ft

9 PM

70°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

WindSSW 10 mph

Air QualityFair

Wind Gusts24 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling2000 ft

10 PM

70°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Cloudy
alerts

Yellow Warning - Heat

3:56 PM Monday - 11:00 PM Tuesday

WindSW 10 mph

Air QualityFair

Wind Gusts25 mph

Humidity85%

Indoor Humidity85% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

11 PM

69°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 33%
Chevron down
Cloudy

WindSW 10 mph

Air QualityExcellent

Wind Gusts25 mph

Humidity81%

Indoor Humidity81% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1800 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 63° with a RealFeel® of 61°, cloudy with a 32% 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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  • Hamilton, Ontario
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