EC Local Forecast


Forecast - Environment Canada

Observed at: Oshawa Executive Airport
Date: 7:00 PM EDT Tuesday 23 September 2025
Cloudy
Cloudy
Temp.: 21 °C
Wind: NNE 5 km/h
Humidity: 84 %
Dew point: 19 °C
Pressure: 101.5 kPa
Tendency: kPa
Visibility: 16 km
Sunrise: 7:03
Sunset: 19:11
Normals:
Max 18°C Min 8°C
 Extended Forecast - Environment Canada
  Wed, 24 Sep
Chance of showers (60%)
Chance of showers
Max: 21°C
Thu, 25 Sep
Showers
Showers
Max: 21°C
Fri, 26 Sep
A mix of sun and cloud
A mix of sun and cloud
Max: 22°C
Sat, 27 Sep
Sunny
Sunny
Max: 23°C
Sun, 28 Sep
Sunny
Sunny
Max: 22°C
Mon, 29 Sep
Sunny
Sunny
Max: 22°C
Tonight
Chance of showers (40%)
Chance of showers
Min: 17°C
Night
Chance of showers (60%)
Chance of showers
Min: 17°C
Night
Chance of showers (40%)
Chance of showers
Min: 13°C
Night
Clear
Clear
Min: 12°C
Night
Clear
Clear
Min: 11°C
Night
Clear
Clear
Min: 9°C

Forecast

Oshawa, ON (Issued: 3:30 PM EDT Tuesday 23 September 2025)

Tonight
Mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening. Wind northwest 20 km/h becoming light this evening. Low 17.
Wed, 24 Sep
Cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. High 21. Humidex 27. UV index 4 or moderate.
Night
Cloudy with 60 percent chance of showers. Risk of a thunderstorm early in the evening. Low 17.
Thu, 25 Sep
Showers. High 21.
Night
Cloudy with 40 percent chance of showers. Low 13.
Fri, 26 Sep
A mix of sun and cloud. High 22.
Night
Clear. Low 12.
Sat, 27 Sep
Sunny. High 23.
Night
Clear. Low 11.
Sun, 28 Sep
Sunny. High 22.
Night
Clear. Low 9.
Mon, 29 Sep
Sunny. High 22.

24 Hour Forecast - Oshawa, ON

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
23 September 2025
8 PM 20 Chance of showers. Risk of thunderstorms (40%)  Chance of showers. Risk of thunderstorms 40 E 10
9 PM 19 Chance of showers. Risk of thunderstorms (40%)  Chance of showers. Risk of thunderstorms 40 E 10
10 PM 19 Chance of showers (40%)  Chance of showers 40 E 10
11 PM 18 Chance of showers (40%)  Chance of showers 40 VR 5
24 September 2025
12 AM 18 Chance of showers (40%)  Chance of showers 40 VR 5
1 AM 18 Chance of showers (40%)  Chance of showers 40 VR 5
2 AM 18 Chance of showers (30%)  Chance of showers 30 VR 5
3 AM 18 Chance of showers (30%)  Chance of showers 30 VR 5
4 AM 17 Chance of showers (30%)  Chance of showers 30 VR 5
5 AM 17 Chance of showers (30%)  Chance of showers 30 VR 5
6 AM 18 Cloudy (20%)  Cloudy 20 VR 5
7 AM 18 Cloudy (20%)  Cloudy 20 VR 5
8 AM 19 Cloudy (20%)  Cloudy 20 E 10
9 AM 19 Cloudy (20%)  Cloudy 20 E 10
10 AM 20 Cloudy (20%)  Cloudy 20 E 10
11 AM 20 Cloudy (20%)  Cloudy 20 E 10
12 PM 20 Chance of showers (60%)  Chance of showers 60 E 10
1 PM 21 Chance of showers (60%)  Chance of showers 60 E 10
2 PM 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
3 PM 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
4 PM 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
5 PM 21 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
6 PM 20 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
7 PM 20 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 E 10
 
† 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

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