Oshawa 7-day weather forecast

Written by:
March 23, 2026
ESOlex // Shutterstock

Oshawa 7-day weather forecast

Stacker created the forecast for Oshawa, Ontario using data from OpenWeather. This week's high is 28 °C on Monday, while the low is 5 °C on Thursday. There are expected to be 0 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, May 18

- High of 28 °C, low of 14 °C (78% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (27 km/h wind)
- Sunrise at 5:46 AM, sunset at 8:37 PM
1 / 6
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Tuesday, May 19

- High of 21 °C, low of 14 °C (83% humidity)
- Mostly cloudy with a 100% chance of rain (11 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (32 km/h wind)
- Sunrise at 5:45 AM, sunset at 8:38 PM
2 / 6
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Wednesday, May 20

- High of 16 °C, low of 8 °C (51% humidity)
- Partly cloudy with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (32 km/h wind)
- Sunrise at 5:44 AM, sunset at 8:39 PM
3 / 6
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Thursday, May 21

- High of 12 °C, low of 5 °C (53% humidity)
- Mostly cloudy with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 5:43 AM, sunset at 8:40 PM
4 / 6
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Friday, May 22

- High of 12 °C, low of 7 °C (60% humidity)
- Overcast with a 0% chance of snow
- Light breeze (16 km/h wind)
- Sunrise at 5:43 AM, sunset at 8:41 PM
5 / 6
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Saturday, May 23

- High of 13 °C, low of 10 °C (70% humidity)
- Overcast with a 0% chance of snow
- Gentle breeze (32 km/h wind)
- Sunrise at 5:42 AM, sunset at 8:42 PM
- First quarter moon
6 / 6
Leonid Ikan // Shutterstock

Sunday, May 24

- High of 11 °C, low of 9 °C (96% humidity)
- Overcast with a 27% chance of rain (0 mm of rain)
- Gentle breeze (28 km/h wind)
- Sunrise at 5:41 AM, sunset at 8:43 PM

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