Ottawa 7-day weather forecast

Written by:
March 23, 2026
ESOlex // Shutterstock

Ottawa 7-day weather forecast

Stacker created the forecast for Ottawa, Ontario using data from OpenWeather. This week's high is 25 °C on Tuesday, while the low is 2 °C on Saturday. There are expected to be 2 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 25

- High of 23 °C, low of 12 °C (83% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Light breeze (14 km/h wind)
- Sunrise at 5:22 AM, sunset at 8:36 PM
1 / 6
Matusciac Alexandru // Shutterstock

Tuesday, May 26

- High of 25 °C, low of 12 °C (64% humidity)
- Sunny with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (30 km/h wind)
- Sunrise at 5:21 AM, sunset at 8:37 PM
2 / 6
Ryzhkov Oleksandr // Shutterstock

Wednesday, May 27

- High of 22 °C, low of 11 °C (57% humidity)
- Partly cloudy with a 80% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Light breeze (22 km/h wind)
- Sunrise at 5:21 AM, sunset at 8:38 PM
3 / 6
Saijai Boonmak // Shutterstock

Thursday, May 28

- High of 17 °C, low of 10 °C (61% humidity)
- Partly cloudy with a 20% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Light breeze (24 km/h wind)
- Sunrise at 5:20 AM, sunset at 8:39 PM
4 / 6
Dmitry Naumov // Shutterstock

Friday, May 29

- High of 14 °C, low of 6 °C (87% humidity)
- Overcast with a 100% chance of rain (14 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 5:19 AM, sunset at 8:40 PM
5 / 6
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Saturday, May 30

- High of 10 °C, low of 2 °C (73% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Light breeze (24 km/h wind)
- Sunrise at 5:19 AM, sunset at 8:41 PM
6 / 6
Robert Schlie // Shutterstock

Sunday, May 31

- High of 21 °C, low of 5 °C (47% humidity)
- Mostly sunny with a 0% chance of snow
- Light breeze (15 km/h wind)
- Sunrise at 5:18 AM, sunset at 8:42 PM
- Full moon

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