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Castleton, Ontario

10°F
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Castleton, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today WinterCast

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 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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WinterCast

Little to no accumulation

Tue, 1/20, 3:00 AM - Tue, 1/20, 4:00 AM

Snow

4 AM

10°
RealFeel® -9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 29%
Chevron down
Partly cloudy
alerts

Yellow Warning - Snow Squall

4:47 PM Monday - 9:00 AM Tuesday

WindW 14 mph

Air QualityExcellent

Wind Gusts25 mph

Humidity75%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

9°
RealFeel® -10°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 24%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Snow Squall

4:47 PM Monday - 9:00 AM Tuesday

WindW 14 mph

Air QualityExcellent

Wind Gusts23 mph

Humidity80%

Indoor Humidity19% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling5900 ft

6 AM

8°
RealFeel® -12°
Frigid
RealFeel Guide
Frigid
-24° to -11°
Caution advised. Frostbite to exposed skin within 8 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 22%
Chevron down
Mostly cloudy
alerts

Yellow Warning - Snow Squall

4:47 PM Monday - 9:00 AM Tuesday

WindW 15 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity80%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling5900 ft

7 AM

4°
RealFeel® -11°
Frigid
RealFeel Guide
Frigid
-24° to -11°
Caution advised. Frostbite to exposed skin within 8 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Partly cloudy
alerts

Yellow Warning - Snow Squall

4:47 PM Monday - 9:00 AM Tuesday

WindWNW 10 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity81%

Indoor Humidity15% (Extremely Dry)

Dew Point-1° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

7°
RealFeel® -10°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Partly sunny
alerts

Yellow Warning - Snow Squall

4:47 PM Monday - 9:00 AM Tuesday

RealFeel Shade™-10°

WindW 13 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts23 mph

Humidity81%

Indoor Humidity18% (Extremely Dry)

Dew Point2° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

9°
RealFeel® -10°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Partly sunny

RealFeel Shade™-12°

WindW 16 mph

Air QualityExcellent

Max UV Index1.1 (Low)

Wind Gusts30 mph

Humidity76%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover34%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

12°
RealFeel® -9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™-11°

WindW 18 mph

Air QualityExcellent

Max UV Index1.7 (Low)

Wind Gusts36 mph

Humidity69%

Indoor Humidity18% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

14°
RealFeel® -7°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™-10°

WindW 21 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts38 mph

Humidity64%

Indoor Humidity19% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

15°
RealFeel® -6°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 14%
Chevron down
Mostly sunny

RealFeel Shade™-9°

WindWSW 21 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts38 mph

Humidity61%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

15°
RealFeel® -5°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™-8°

WindWSW 20 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts36 mph

Humidity59%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

16°
RealFeel® -3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™-6°

WindWSW 20 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts35 mph

Humidity55%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

15°
RealFeel® -6°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™-7°

WindWSW 20 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts33 mph

Humidity59%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

14°
RealFeel® -8°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™-8°

WindWSW 18 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts33 mph

Humidity62%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

12°
RealFeel® -10°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™-10°

WindWSW 17 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts32 mph

Humidity68%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

11°
RealFeel® -9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 3%
Chevron down
Mostly clear

WindWSW 16 mph

Air QualityFair

Wind Gusts32 mph

Humidity70%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

10°
RealFeel® -12°
Frigid
RealFeel Guide
Frigid
-24° to -11°
Caution advised. Frostbite to exposed skin within 8 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 6%
Chevron down
Mostly clear

WindWSW 17 mph

Air QualityFair

Wind Gusts32 mph

Humidity75%

Indoor Humidity19% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover23%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

12°
RealFeel® -10°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 6%
Chevron down
Partly cloudy

WindWSW 17 mph

Air QualityFair

Wind Gusts32 mph

Humidity75%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

13°
RealFeel® -8°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 6%
Chevron down
Partly cloudy

WindWSW 17 mph

Air QualityFair

Wind Gusts33 mph

Humidity77%

Indoor Humidity22% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

15°
RealFeel® -7°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 6%
Chevron down
Partly cloudy

WindWSW 18 mph

Air QualityFair

Wind Gusts33 mph

Humidity77%

Indoor Humidity23% (Very Dry)

Dew Point9° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

14°
RealFeel® -7°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 6%
Chevron down
Intermittent clouds

WindWSW 18 mph

Air QualityFair

Wind Gusts35 mph

Humidity78%

Indoor Humidity23% (Very Dry)

Dew Point9° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover51%

Visibility10 mi

Cloud Ceiling1900 ft

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World North America Canada Ontario Castleton

Weather Near Castleton:

  • Markham, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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