Observed at: St. Catharines / Niagara District Airport
Date: Thursday March 13, 2025 at 15:00 EDT
Temp.: 4.1 °C
Wind: N 14 km/h
Humidity: 71 %
Dew point: -0.7 °C
Pressure: 101.6 kPa
Tendency:
Sunrise: 07:33
Sunset: 19:21
Normals:
Max 4°C Min -3°C
 Extended Forecast - Environment Canada
Thursday
Sunny
Sunny
Max: 7°C
 Friday
Mainly sunny
Mainly sunny
Max: 16°C
 Saturday
Chance of showers (60%)
Chance of showers
Max: 16°C
 Sunday
Showers
Showers
Max: 12°C
 Monday
A mix of sun and cloud
A mix of sun and cloud
Max: 2°C
 Tuesday
A mix of sun and cloud
A mix of sun and cloud
Max: 8°C
 Wednesday
Chance of showers (30%)
Chance of showers
Max: 12°C
Thursday night
Clear
Clear
Min: -2°C
 Friday night
Clear
Clear
Min: 9°C
 Saturday night
Showers
Showers
Min: 10°C
 Sunday night
Chance of rain showers or flurries (30%)
Chance of rain showers or flurries
Min: -1°C
 Monday night
Cloudy periods
Cloudy periods
Min: -3°C
 Tuesday night
Cloudy
Cloudy
Min: 5°C
  

Forecast

St. Catharines, ON (Issued: Thursday March 13, 2025 at 11:00 EDT)

Today
Sunny. High 7. UV index 5 or moderate.
Tonight
Clear. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight.
Friday
Mainly sunny. High 16. UV index 5 or moderate.
Friday night
Clear. Low 9.
Saturday
A mix of sun and cloud with 60 percent chance of showers. High 16.
Saturday night
Showers. Low 10.
Sunday
Showers. Windy. High 12.
Sunday night
Cloudy with 30 percent chance of rain showers or flurries. Low minus 1.
Monday
A mix of sun and cloud. High plus 2.
Monday night
Cloudy periods. Low minus 3.
Tuesday
A mix of sun and cloud. High 8.
Tuesday night
Cloudy. Low plus 5.
Wednesday
Cloudy with 30 percent chance of showers. High 12.

24 Hour Forecast - St. Catharines, ON

Date/Time
(EDT)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)		 Wind
Chill
13 March 2025
16:00 7 Sunny (0%)  Sunny Nil VR 5 ‡
17:00 7 Sunny (0%)  Sunny Nil VR 5 ‡
18:00 7 Sunny (0%)  Sunny Nil VR 5 ‡
19:00 6 Clear (0%)  Clear Nil VR 5 ‡
20:00 6 Clear (0%)  Clear Nil VR 5 ‡
21:00 5 Clear (0%)  Clear Nil VR 5 ‡
22:00 4 Clear (0%)  Clear Nil VR 5 ‡
23:00 3 Clear (0%)  Clear Nil VR 5 ‡
14 March 2025
00:00 2 Clear (0%)  Clear Nil VR 5 ‡
01:00 1 Clear (0%)  Clear Nil VR 5 ‡
02:00 0 Clear (0%)  Clear Nil VR 5 ‡
03:00 -1 Clear (0%)  Clear Nil VR 5 -2
04:00 -1 Clear (0%)  Clear Nil VR 5 -3
05:00 -2 Clear (0%)  Clear Nil VR 5 -4
06:00 -1 A few clouds (0%)  A few clouds Nil VR 5 -3
07:00 0 Mainly sunny (0%)  Mainly sunny Nil VR 5 ‡
08:00 1 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
09:00 4 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
10:00 6 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
11:00 9 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
12:00 11 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
13:00 12 Mainly sunny (0%)  Mainly sunny Nil S 10 ‡
14:00 14 Mainly sunny (0%)  Mainly sunny Nil VR 5 ‡
15:00 15 Mainly sunny (0%)  Mainly sunny Nil VR 5 ‡
 
† 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%
‡ Value not significant

Environment Canada