Ottawa 7-day weather forecast

Written by:
June 23, 2025
ESOlex // Shutterstock

Ottawa 7-day weather forecast

Stacker created the forecast for Ottawa, Ontario using data from OpenWeather. This week's high is 34 °C on Monday, while the low is 14 °C on Thursday. There are expected to be 2 sunny days and rain on 3 days this week.

Environment Canada has issued a heat until Monday at 08:55 AM and a heat until Monday at 09:11 AM.

Monday, June 23

- High of 34 °C, low of 22 °C (56% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 5:14 AM, sunset at 8:55 PM
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Onishchenko Natalya // Shutterstock

Tuesday, June 24

- High of 31 °C, low of 20 °C (58% humidity)
- Fair with a 0% chance of snow
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 5:15 AM, sunset at 8:55 PM
2 / 6
Leonid Ikan // Shutterstock

Wednesday, June 25

- High of 27 °C, low of 16 °C (48% humidity)
- Mostly sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (13 km/h wind)
- Sunrise at 5:15 AM, sunset at 8:55 PM
- New moon
3 / 6
Leonid Ikan // Shutterstock

Thursday, June 26

- High of 25 °C, low of 14 °C (50% humidity)
- Mostly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light air (13 km/h wind)
- Sunrise at 5:15 AM, sunset at 8:55 PM
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Cari Rubin Photography // Shutterstock

Friday, June 27

- High of 20 °C, low of 15 °C (68% humidity)
- Overcast with a 100% chance of rain (10 mm of rain)
- Gentle breeze (28 km/h wind)
- Sunrise at 5:16 AM, sunset at 8:55 PM
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Alex Stemmer // Shutterstock

Saturday, June 28

- High of 27 °C, low of 18 °C (70% humidity)
- Mostly cloudy with a 100% chance of rain (4 mm of rain)
- Light breeze (14 km/h wind)
- Sunrise at 5:16 AM, sunset at 8:55 PM
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Gaschwald // Shutterstock

Sunday, June 29

- High of 29 °C, low of 17 °C (79% humidity)
- Mostly cloudy with a 100% chance of rain (5 mm of rain)
- Light breeze (21 km/h wind)
- Sunrise at 5:17 AM, sunset at 8:55 PM

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