EC Local Forecast
Forecast - Environment Canada
Observed at: Oshawa Executive Airport Date: 5:02 PM EDT Saturday 15 August 2026 |
Haze
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Temp.: 23 °C
Wind: SSE 17 km/h
Humidity: 62 %
Dew point: 15 °C
Pressure: 102.2 kPa
Tendency: kPa
Visibility: 10 km
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Sunrise: 6:19
Sunset: 20:20
Normals: Max 25°C Min 14°C
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| Extended Forecast - Environment Canada |
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Sun, 16 Aug
Chance of showers
Max: 28°C
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Mon, 17 Aug
Chance of showers
Max: 27°C
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Tue, 18 Aug
Sunny
Max: 27°C
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Wed, 19 Aug
Chance of showers
Max: 24°C
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Thu, 20 Aug
A mix of sun and cloud
Max: 23°C
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Fri, 21 Aug
A mix of sun and cloud
Max: 23°C
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Tonight
Clear
Min: 16°C
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Night
Chance of showers
Min: 19°C
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Night
Clear
Min: 13°C
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Night
Chance of showers
Min: 18°C
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Night
Chance of showers
Min: 13°C
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Night
Cloudy periods
Min: 11°C
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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 |
E 10 |
| 7 PM |
22 |
Sunny |
0 |
E 10 |
| 8 PM |
21 |
Clear |
0 |
E 10 |
| 9 PM |
20 |
Clear |
0 |
E 10 |
| 10 PM |
19 |
Clear |
0 |
E 10 |
| 11 PM |
18 |
Clear |
0 |
E 10 |
| 16 August 2026 |
| 12 AM |
17 |
Clear |
0 |
E 10 |
| 1 AM |
17 |
Clear |
0 |
E 10 |
| 2 AM |
16 |
Clear |
0 |
E 10 |
| 3 AM |
16 |
Clear |
0 |
E 10 |
| 4 AM |
16 |
Clear |
0 |
E 10 |
| 5 AM |
16 |
A few clouds |
0 |
E 10 |
| 6 AM |
17 |
A mix of sun and cloud |
20 |
E 10 |
| 7 AM |
17 |
Mainly cloudy |
20 |
E 10 |
| 8 AM |
18 |
Mainly cloudy |
20 |
E 20 |
| 9 AM |
20 |
Mainly cloudy |
20 |
E 20 |
| 10 AM |
21 |
Mainly cloudy |
20 |
E 20 |
| 11 AM |
23 |
Mainly cloudy |
20 |
SE 10 |
| 12 PM |
25 |
A mix of sun and cloud |
20 |
SE 10 |
| 1 PM |
26 |
A mix of sun and cloud |
20 |
SE 10 |
| 2 PM |
28 |
Mainly cloudy |
20 |
SE 10 |
| 3 PM |
27 |
Cloudy |
20 |
SE 10 |
| 4 PM |
27 |
Chance of showers. Risk of thunderstorms |
60 |
SE 10 |
| 5 PM |
26 |
Chance of showers. Risk of thunderstorms |
60 |
VR 5 |
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† 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%
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Environment Canada
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