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Observed at: Toronto Buttonville Municipal Airport
Date: Tuesday January 18, 2022 at 01:00 EST
Temp.: -3.9 °C
Wind Chill: -11
Wind: WNW 23 gust 36 km/h
Humidity: 70 %
Dew point: -8.6 °C
Pressure: 100.5 kPa
Tendency:
Sunrise: 07:47
Sunset: 17:08
Normals:
Max -3°C Min -12°C
Yesterday
  Max: °C
  Min: °C
  Rainfall: mm
 Extended Forecast - Environment Canada
  Tuesday
Chance of flurries (40%)
Chance of flurries
Max: -6°C
 Wednesday
Chance of flurries (60%)
Chance of flurries
Max: 2°C
 Thursday
A mix of sun and cloud
A mix of sun and cloud
Max: -12°C
 Friday
A mix of sun and cloud
A mix of sun and cloud
Max: -9°C
 Saturday
Cloudy
Cloudy
Max: -5°C
 Sunday
Cloudy
Cloudy
Max: -6°C
Monday night
Chance of flurries (40%)
Chance of flurries
Min: -11°C
 Tuesday night
Periods of snow
Periods of snow
Min: -6°C *
 Wednesday night
Cloudy periods
Cloudy periods
Min: -20°C
 Thursday night
Cloudy periods
Cloudy periods
Min: -22°C
 Friday night
Cloudy periods
Cloudy periods
Min: -15°C
 Saturday night
Chance of flurries (60%)
Chance of flurries
Min: -9°C

* - Denotes an abnormal temperature trend.

Forecast

Markham, ON (Issued: Monday January 17, 2022 at 17:25 EST)

Tonight
Cloudy. 40 percent chance of flurries late this evening and overnight. Local blowing snow this evening. Wind northwest 40 km/h gusting to 60 diminishing to 20 near midnight. Low minus 11. Wind chill minus 13 this evening and minus 18 overnight.
Tuesday
Mainly cloudy. 40 percent chance of flurries early in the morning. Wind up to 15 km/h. High minus 6. Wind chill minus 18 in the morning and minus 12 in the afternoon. UV index 1 or low.
Tuesday night
Cloudy. Periods of snow beginning in the evening. Amount 2 cm. Wind up to 15 km/h. Temperature rising to zero by morning. Wind chill minus 13 in the evening and minus 5 overnight.
Wednesday
Cloudy with 60 percent chance of flurries. High plus 2.
Wednesday night
Cloudy periods. Low minus 20.
Thursday
A mix of sun and cloud. High minus 12.
Thursday night
Cloudy periods. Low minus 22.
Friday
A mix of sun and cloud. High minus 9.
Friday night
Cloudy periods. Low minus 15.
Saturday
Cloudy. High minus 5.
Saturday night
Cloudy with 60 percent chance of flurries. Low minus 9.
Sunday
Cloudy. High minus 6.
Averages and extremes
Highest temperature(1987-2015)11.9 °C1996
Lowest temperature(1987-2015)-25.7 °C1997
Average highn/a 
Average lown/a 
Averagen/a 
Greatest rainfall(1987-2015)7.6 mm1999
Greatest snowfall(1987-2015)11.4 cm2009
Greatest precipitation(1987-2015)12.2 mm2006
Most snow on the ground(1987-2015)39.0 cm1999
Monthly frequency of precipitation54.0 % 

24 Hour Forecast - Markham, ON

Date/Time
(EST)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)		 Wind
Chill
18 January 2022
03:00 -9 Chance of flurries (40%)  Chance of flurries Low NW 20 -17
04:00 -10 Chance of flurries (40%)  Chance of flurries Low NW 20 -18
05:00 -10 Chance of flurries (40%)  Chance of flurries Low NW 20 -18
06:00 -11 Chance of flurries (40%)  Chance of flurries Low NW 15 -18
07:00 -11 Chance of flurries (40%)  Chance of flurries Low NW 15 -18
08:00 -11 Chance of flurries (40%)  Chance of flurries Low NW 15 -18
09:00 -11 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -18
10:00 -11 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -18
11:00 -10 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -16
12:00 -8 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -15
13:00 -7 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -13
14:00 -7 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -13
15:00 -6 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -12
16:00 -6 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -12
17:00 -7 Mainly cloudy (20%)  Mainly cloudy Low NW 15 -13
18:00 -7 Mainly cloudy (20%)  Mainly cloudy Low S 10 -12
19:00 -8 Cloudy (20%)  Cloudy Low S 10 -13
20:00 -7 Cloudy (20%)  Cloudy Low S 10 -12
21:00 -6 Periods of snow (100%)  Periods of snow High S 10 -10
22:00 -5 Periods of snow (100%)  Periods of snow High S 10 -9
23:00 -4 Periods of snow (100%)  Periods of snow High S 10 -8
19 January 2022
00:00 -4 Periods of snow (100%)  Periods of snow High S 10 -8
01:00 -3 Periods of snow (100%)  Periods of snow High S 10 -7
02:00 -3 Periods of snow (100%)  Periods of snow High S 10 -7
 
† Likelihood of Precipitation (LOP) as described in the public forecast as a chance of measurable precipitation for a period of time.
  Nil: 0%
  Low: 40% or below
  Medium: 60% or 70%
  High: Above 70%

Environment Canada