Oshawa 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Oshawa 7-day weather forecast

Stacker created the forecast for Oshawa, Ontario using data from OpenWeather. This week's high is 26 °C on Monday, while the low is 7 °C on Saturday. There are expected to be 5 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, September 15

- High of 26 °C, low of 14 °C (57% humidity)
- Partly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (14 km/h wind)
- Sunrise at 6:54 AM, sunset at 7:26 PM
1 / 6
Marian Weyo // Shutterstock

Tuesday, September 16

- High of 23 °C, low of 15 °C (52% humidity)
- Fair with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (14 km/h wind)
- Sunrise at 6:56 AM, sunset at 7:24 PM
2 / 6
Piyawat Nandeenopparit // Shutterstock

Wednesday, September 17

- High of 23 °C, low of 15 °C (60% humidity)
- Mostly sunny with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (13 km/h wind)
- Sunrise at 6:57 AM, sunset at 7:22 PM
3 / 6
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Thursday, September 18

- High of 24 °C, low of 16 °C (54% humidity)
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (19 km/h wind)
- Sunrise at 6:58 AM, sunset at 7:20 PM
4 / 6
Gary Whitton // Shutterstock

Friday, September 19

- High of 20 °C, low of 13 °C (46% humidity)
- Sunny with a 0% chance of snow
- Light breeze (27 km/h wind)
- Sunrise at 6:59 AM, sunset at 7:18 PM
5 / 6
Pablesku // Shutterstock

Saturday, September 20

- High of 15 °C, low of 7 °C (41% humidity)
- Sunny with a 0% chance of snow
- Light breeze (22 km/h wind)
- Sunrise at 7:00 AM, sunset at 7:17 PM
6 / 6
Gaschwald // Shutterstock

Sunday, September 21

- High of 20 °C, low of 11 °C (53% humidity)
- Partly sunny with a 0% chance of snow
- Light breeze (16 km/h wind)
- Sunrise at 7:01 AM, sunset at 7:15 PM
- New moon

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