Observed at: St. Catharines / Niagara District Airport
Date: Saturday December 21, 2024 at 12:00 EST
Mostly Cloudy
Mostly Cloudy 		Temp.: -7.7 °C
Wind Chill: -15
Wind: NW 21 km/h
Humidity: 70 %
Dew point: -12.3 °C
Pressure: 102.7 kPa
Tendency: rising
Visibility: 24.1 km 		Sunrise: 07:46
Sunset: 16:45
Normals:
Max 0°C Min -6°C
 Extended Forecast - Environment Canada
Saturday
A few flurries
A few flurries
Max: -7°C
 Sunday
Chance of flurries (40%)
Chance of flurries
Max: -8°C
 Monday
Chance of flurries (40%)
Chance of flurries
Max: -1°C
 Tuesday
Chance of flurries or rain showers (40%)
Chance of flurries or rain showers
Max: 2°C
 Wednesday
Chance of flurries or rain showers (30%)
Chance of flurries or rain showers
Max: 3°C
 Thursday
Cloudy
Cloudy
Max: 4°C
 Friday
Cloudy
Cloudy
Max: 6°C
Saturday night
Chance of flurries (60%)
Chance of flurries
Min: -12°C
 Sunday night
Clear
Clear
Min: -6°C
 Monday night
Periods of snow or rain
Periods of snow or rain
Min: -1°C
 Tuesday night
Chance of flurries (30%)
Chance of flurries
Min: 0°C
 Wednesday night
Cloudy
Cloudy
Min: 2°C
 Thursday night
Cloudy
Cloudy
Min: 3°C
  

Forecast

St. Catharines, ON (Issued: Saturday December 21, 2024 at 11:00 EST)

Today
Flurries. Local amount 2 cm. Wind north 20 km/h. Temperature steady near minus 7. Wind chill near minus 14.
Tonight
Partly cloudy with 60 percent chance of flurries. Wind north 20 km/h. Low minus 12. Wind chill minus 14 this evening and minus 20 overnight.
Sunday
A mix of sun and cloud with 40 percent chance of flurries in the morning. Clearing in the afternoon. Wind up to 15 km/h. High minus 8. Wind chill minus 16 in the morning and minus 11 in the afternoon.
Sunday night
Clear. Low minus 6.
Monday
Cloudy with 40 percent chance of flurries. High minus 1.
Monday night
Periods of snow or rain. Low minus 1.
Tuesday
Cloudy with 40 percent chance of flurries or rain showers. High plus 2.
Tuesday night
Cloudy with 30 percent chance of flurries. Low zero.
Wednesday
Cloudy with 30 percent chance of flurries or rain showers. High plus 3.
Wednesday night
Cloudy. Low plus 2.
Thursday
Cloudy. High plus 4.
Thursday night
Cloudy. Low plus 3.
Friday
Cloudy. High 6.

24 Hour Forecast - St. Catharines, ON

Date/Time
(EST)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)		 Wind
Chill
21 December 2024
13:00 -7 A few flurries (80%)  A few flurries High N 20 -14
14:00 -7 A few flurries (80%)  A few flurries High N 20 -14
15:00 -7 A few flurries (80%)  A few flurries High N 20 -14
16:00 -7 A few flurries (80%)  A few flurries High N 20 -14
17:00 -7 A few flurries (80%)  A few flurries High N 20 -14
18:00 -7 Chance of flurries (60%)  Chance of flurries Medium N 20 -14
19:00 -7 Chance of flurries (60%)  Chance of flurries Medium N 20 -14
20:00 -7 Chance of flurries (60%)  Chance of flurries Medium N 20 -14
21:00 -8 Chance of flurries (60%)  Chance of flurries Medium N 20 -15
22:00 -8 Chance of flurries (60%)  Chance of flurries Medium N 20 -15
23:00 -9 Chance of flurries (60%)  Chance of flurries Medium N 20 -16
22 December 2024
00:00 -9 Chance of flurries (60%)  Chance of flurries Medium N 20 -17
01:00 -10 Chance of flurries (60%)  Chance of flurries Medium N 20 -18
02:00 -11 Chance of flurries (60%)  Chance of flurries Medium N 20 -19
03:00 -11 Chance of flurries (60%)  Chance of flurries Medium N 20 -20
04:00 -12 Chance of flurries (60%)  Chance of flurries Medium N 20 -20
05:00 -11 Chance of flurries (60%)  Chance of flurries Medium N 20 -20
06:00 -11 Chance of flurries (40%)  Chance of flurries Low N 10 -16
07:00 -10 Chance of flurries (40%)  Chance of flurries Low N 10 -15
08:00 -10 Chance of flurries (40%)  Chance of flurries Low N 10 -15
09:00 -10 Chance of flurries (40%)  Chance of flurries Low VR 5 -13
10:00 -10 Chance of flurries (40%)  Chance of flurries Low VR 5 -13
11:00 -10 Chance of flurries (40%)  Chance of flurries Low VR 5 -13
12:00 -9 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -12
 
† 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