FROST ADVISORY

Observed at: St. Catharines / Niagara District Airport
Date: Thursday April 25, 2024 at 18:00 EDT
Mainly Sunny
Mainly Sunny 		Temp.: 8.2 °C
Wind: ENE 14 km/h
Humidity: 33 %
Dew point: -7.0 °C
Pressure: 102.9 kPa
Tendency: falling
Visibility: 24.1 km 		Sunrise: 06:18
Sunset: 20:12
Normals:
Max 15°C Min 5°C
Yesterday
  Max: °C
  Min: °C
  Rainfall: mm
 Extended Forecast - Environment Canada
  Friday
Sunny
Sunny
Max: 17°C
 Saturday
Chance of showers (70%)
Chance of showers
Max: 15°C
 Sunday
Chance of showers (40%)
Chance of showers
Max: 19°C
 Monday
Chance of showers (30%)
Chance of showers
Max: 21°C
 Tuesday
Chance of showers (40%)
Chance of showers
Max: 18°C
 Wednesday
Chance of showers (30%)
Chance of showers
Max: 16°C
Thursday night
Clear
Clear
Min: 0°C
 Friday night
A few clouds
A few clouds
Min: 8°C
 Saturday night
Chance of showers (40%)
Chance of showers
Min: 12°C
 Sunday night
Chance of showers (30%)
Chance of showers
Min: 12°C
 Monday night
Chance of showers (60%)
Chance of showers
Min: 12°C
 Tuesday night
Cloudy periods
Cloudy periods
Min: 8°C

Forecast

St. Catharines, ON (Issued: Thursday April 25, 2024 at 17:04 EDT)

Tonight
Clear. Low zero with patchy frost.
Friday
Sunny. Wind becoming northeast 30 km/h gusting to 50 in the morning. High 17 except 10 near Lake Ontario. UV index 6 or high.
Friday night
Clear. Becoming partly cloudy late in the evening. Wind east 20 km/h gusting to 40 becoming light in the evening. Low 8.
Saturday
Cloudy with 70 percent chance of showers. High 15.
Saturday night
Cloudy with 40 percent chance of showers. Low 12.
Sunday
A mix of sun and cloud with 40 percent chance of showers. High 19.
Sunday night
Cloudy periods with 30 percent chance of showers. Low 12.
Monday
A mix of sun and cloud with 30 percent chance of showers. High 21.
Monday night
Cloudy periods with 60 percent chance of showers. Low 12.
Tuesday
A mix of sun and cloud with 40 percent chance of showers. High 18.
Tuesday night
Cloudy periods. Low 8.
Wednesday
A mix of sun and cloud with 30 percent chance of showers. High 16.
Averages and extremes
Highest temperature(1972-2000)30.3 °C1990
Lowest temperature(1972-2000)-1.7 °C1972
Average high14.5 °C 
Average low3.8 °C 
Average9.2 °C 
Greatest rainfall(1972-2000)49.3 mm1976
Greatest snowfall(1972-2000)0.0 cm1972
Greatest precipitation(1972-2000)49.3 mm1976
Most snow on the ground(1972-2000)0.0 cm1972
Monthly frequency of precipitation46.0 % 

24 Hour Forecast - St. Catharines, ON

Date/Time
(EDT)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
25 April 2024
19:00 7 Sunny (0%)  Sunny Nil NE 10
20:00 7 Clear (0%)  Clear Nil NE 10
21:00 6 Clear (0%)  Clear Nil NE 10
22:00 5 Clear (0%)  Clear Nil NE 10
23:00 4 Clear (0%)  Clear Nil E 10
26 April 2024
00:00 3 Clear (0%)  Clear Nil E 10
01:00 2 Clear (0%)  Clear Nil E 10
02:00 1 Clear (0%)  Clear Nil E 10
03:00 1 Clear (0%)  Clear Nil E 10
04:00 0 Clear (0%)  Clear Nil E 10
05:00 0 Clear (0%)  Clear Nil E 10
06:00 1 Sunny (0%)  Sunny Nil E 10
07:00 1 Sunny (0%)  Sunny Nil E 10
08:00 2 Sunny (0%)  Sunny Nil E 20 gust 40
09:00 5 Sunny (0%)  Sunny Nil E 20 gust 40
10:00 9 Sunny (0%)  Sunny Nil E 20 gust 40
11:00 12 Sunny (0%)  Sunny Nil E 20 gust 40
12:00 14 Sunny (0%)  Sunny Nil NE 30 gust 50
13:00 15 Sunny (0%)  Sunny Nil NE 30 gust 50
14:00 17 Sunny (0%)  Sunny Nil NE 30 gust 50
15:00 16 Sunny (0%)  Sunny Nil NE 30 gust 50
16:00 16 Sunny (0%)  Sunny Nil NE 30 gust 50
17:00 15 Sunny (0%)  Sunny Nil NE 30 gust 50
18:00 14 Sunny (10%)  Sunny Low E 20 gust 40
 
† 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