EC Local Forecast


Forecast - Environment Canada

Observed at: Oshawa Executive Airport
Date: 5:02 PM EDT Saturday 15 August 2026
Haze
Haze
Temp.: 23 °C
Wind: SSE 17 km/h
Humidity: 62 %
Dew point: 15 °C
Pressure: 102.2 kPa
Tendency: kPa
Visibility: 10 km
Sunrise: 6:19
Sunset: 20:20
Normals:
Max 25°C Min 14°C
 Extended Forecast - Environment Canada
  Sun, 16 Aug
Chance of showers (60%)
Chance of showers
Max: 28°C
Mon, 17 Aug
Chance of showers (30%)
Chance of showers
Max: 27°C
Tue, 18 Aug
Sunny
Sunny
Max: 27°C
Wed, 19 Aug
Chance of showers (60%)
Chance of showers
Max: 24°C
Thu, 20 Aug
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Fri, 21 Aug
A mix of sun and cloud
A mix of sun and cloud
Max: 23°C
Tonight
Clear
Clear
Min: 16°C
Night
Chance of showers (60%)
Chance of showers
Min: 19°C
Night
Clear
Clear
Min: 13°C
Night
Chance of showers (40%)
Chance of showers
Min: 18°C
Night
Chance of showers (30%)
Chance of showers
Min: 13°C
Night
Cloudy periods
Cloudy periods
Min: 11°C

Forecast

Oshawa, ON (Issued: 3:30 PM EDT Saturday 15 August 2026)

Tonight
Clear. Low 16.
Sun, 16 Aug
Mainly cloudy. 60 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind east 20 km/h becoming light late in the morning. High 28. Humidex 34. UV index 8 or very high.
Night
Cloudy with 60 percent chance of showers. Risk of a thunderstorm in the evening. Low 19.
Mon, 17 Aug
A mix of sun and cloud with 30 percent chance of showers. High 27.
Night
Clear. Low 13.
Tue, 18 Aug
Sunny. High 27.
Night
Cloudy periods with 40 percent chance of showers. Low 18.
Wed, 19 Aug
Cloudy with 60 percent chance of showers. High 24.
Night
Cloudy periods with 30 percent chance of showers. Low 13.
Thu, 20 Aug
A mix of sun and cloud. High 23.
Night
Cloudy periods. Low 11.
Fri, 21 Aug
A mix of sun and cloud. High 23.

24 Hour Forecast - Oshawa, ON

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
15 August 2026
6 PM 24 Sunny (0%)  Sunny 0 E 10
7 PM 22 Sunny (0%)  Sunny 0 E 10
8 PM 21 Clear (0%)  Clear 0 E 10
9 PM 20 Clear (0%)  Clear 0 E 10
10 PM 19 Clear (0%)  Clear 0 E 10
11 PM 18 Clear (0%)  Clear 0 E 10
16 August 2026
12 AM 17 Clear (0%)  Clear 0 E 10
1 AM 17 Clear (0%)  Clear 0 E 10
2 AM 16 Clear (0%)  Clear 0 E 10
3 AM 16 Clear (0%)  Clear 0 E 10
4 AM 16 Clear (0%)  Clear 0 E 10
5 AM 16 A few clouds (0%)  A few clouds 0 E 10
6 AM 17 A mix of sun and cloud (20%)  A mix of sun and cloud 20 E 10
7 AM 17 Mainly cloudy (20%)  Mainly cloudy 20 E 10
8 AM 18 Mainly cloudy (20%)  Mainly cloudy 20 E 20
9 AM 20 Mainly cloudy (20%)  Mainly cloudy 20 E 20
10 AM 21 Mainly cloudy (20%)  Mainly cloudy 20 E 20
11 AM 23 Mainly cloudy (20%)  Mainly cloudy 20 SE 10
12 PM 25 A mix of sun and cloud (20%)  A mix of sun and cloud 20 SE 10
1 PM 26 A mix of sun and cloud (20%)  A mix of sun and cloud 20 SE 10
2 PM 28 Mainly cloudy (20%)  Mainly cloudy 20 SE 10
3 PM 27 Cloudy (20%)  Cloudy 20 SE 10
4 PM 27 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 SE 10
5 PM 26 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 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%

Environment Canada

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