Oshawa 7-day weather forecast

Written by:
August 4, 2025
ESOlex // Shutterstock

Oshawa 7-day weather forecast

Stacker created the forecast for Oshawa, Ontario using data from OpenWeather. This week's high is 30 °C on Saturday, while the low is 16 °C on Monday. There are expected to be 3 sunny days and rain on 3 days this week.

Environment Canada, the Province of Ontario has issued an air quality until Monday at 12:58 PM.

Monday, August 4

- High of 29 °C, low of 16 °C (45% humidity)
- Sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (7 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:07 AM, sunset at 8:35 PM
1 / 6
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Tuesday, August 5

- High of 26 °C, low of 19 °C (52% humidity)
- Overcast with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (20 km/h wind)
- Sunrise at 6:08 AM, sunset at 8:34 PM
2 / 6
Marian Weyo // Shutterstock

Wednesday, August 6

- High of 27 °C, low of 19 °C (62% humidity)
- Overcast with a 31% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:09 AM, sunset at 8:32 PM
3 / 6
Matusciac Alexandru // Shutterstock

Thursday, August 7

- High of 28 °C, low of 20 °C (49% humidity)
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (7 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 6:10 AM, sunset at 8:31 PM
4 / 6
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Friday, August 8

- High of 28 °C, low of 20 °C (55% humidity)
- Mostly sunny with a 0% chance of snow
- Light breeze (20 km/h wind)
- Sunrise at 6:11 AM, sunset at 8:30 PM
5 / 6
Gaschwald // Shutterstock

Saturday, August 9

- High of 30 °C, low of 22 °C (52% humidity)
- Partly cloudy with a 60% chance of rain (0 mm of rain)
- Gentle breeze (27 km/h wind)
- Sunrise at 6:13 AM, sunset at 8:28 PM
- Full moon
6 / 6
Alex Linch // Shutterstock

Sunday, August 10

- High of 30 °C, low of 21 °C (57% humidity)
- Overcast with a 36% chance of rain (0 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 6:14 AM, sunset at 8:27 PM

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