Weather forecast for 10 days
Ottawa, Canada

Weather forecast for the weekend

Saturday, Jun 21.

Mostly Cloudy
5:12 am

8:56 pm
EDT
Mostly Cloudy
82°F / 68°F
  • Wind: 12mph SSW
  • Humidity: 56%
  • Precip. probability: 22%
  • Precipitation: 0"
  • UV index: 7
On Saturday, June 21, gloomy and cloudy conditions will set the tone.
The temperature scale will run from a maximum of a moderately hot 28°C to a minimum of an agreeable 20°C.
The maximum heat index, which indicates how humid air affects the felt temperature, is estimated at 29°C.
The weather tomorrow is warmer, with a maximum expected near 25.3°C - more like July than June.
Sunrise will be at 5:12 am and sunset at 8:56 pm; tomorrow's daylight will last for 15h and 44min.

Sunday, Jun 22.

Partly Cloudy
5:12 am

8:56 pm
EDT
Partly Cloudy
88°F / 73°F
  • Wind: 9mph W
  • Humidity: 76%
  • Precip. probability: 23%
  • Precipitation: 0.28"
  • UV index: 8
On Sunday, in Ottawa, the sky will feature a blend of clouds and sunshine.
With a low probability, light precipitation is anticipated. The highest temperature will be a blazing 31°C, while the lowest temperature will be a warm 23°C.
It will be hotter, as the maximum temperature reflects July's norm of 25.3°C instead of June's.
Sunrise will be at 5:12 am and sunset at 8:56 pm; the daylight will last for 15h and 44min.

Frequently asked questions

What is the weather forecast for Ottawa for tomorrow?
Tomorrow, in Ottawa, expect mainly cloudy weather with limited sun.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 28°C, while the lowest temperature will be 20°C. The maximum heat index, which measures the combined effect of heat and moisture, is assessed at 29°C.
Tomorrow, the maximum temperature will be significantly higher than the average highest temperature of 21.6°C in June. Tomorrow, the lowest temperature will be also notably higher than the average low of 11.3°C.
When are sunrise and sunset tomorrow?
On Saturday, in Ottawa, sunrise will be at 5:12 am and sunset at 8:56 pm (EDT).
How long will the day be tomorrow?
In Ottawa, tomorrow, there will be 15h and 44min of daylight.
What is the weather forecast for Ottawa for Sunday?
On Sunday, in Ottawa, a pleasant mix of sun and clouds will define the day.
Will it rain on Sunday?
Light precipitation of 7mm is expected on Sunday. The possibility of rainfall is 23%.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 31°C, while the lowest temperature will be 23°C.
What is the weather forecast for Ottawa for the next ten days?
In Ottawa, a combination of predominantly gloomy and occasionally wet and unstable weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is anticipated on Sunday, next Friday through next Sunday in Ottawa. With light precipitation of 9mm, next Saturday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 24°C and 36°C, as the minimum temperature will vary between 12°C and 24°C.
Combining with the humidity, the maximum feel-like temperature will vary between 24°C and 50°C.
What will be the hottest and the coldest days?
With the maximum temperature of 36°C, Monday will be the hottest day. With a maximum temperature of 24°C, Friday and next Friday will be the coldest days.

Long-term weather forecast

FriJun 20.
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 19mph WNW
  • Humidity: 57%
  • UV index: 8
  • Precip. probability: 5%
  • Precipitation: 0.31"
  • 5:12 am 8:56 pm EDT
SatJun 21.
  • 82°F
  • 68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph SSW
  • Humidity: 56%
  • UV index: 7
  • Precip. probability: 22%
  • Precipitation: 0"
  • 5:12 am 8:56 pm EDT
SunJun 22.
  • 88°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 76%
  • UV index: 8
  • Precip. probability: 23%
  • Precipitation: 0.28"
  • 5:12 am 8:56 pm EDT
MonJun 23.
  • 97°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WSW
  • Humidity: 63%
  • UV index: 8
  • Precip. probability: 12%
  • Precipitation: 0"
  • 5:13 am 8:57 pm EDT
TueJun 24.
  • 90°F
  • 64°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WNW
  • Humidity: 60%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:13 am 8:57 pm EDT
WedJun 25.
  • 81°F
  • 61°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph NNE
  • Humidity: 51%
  • UV index: 7
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:13 am 8:57 pm EDT
ThuJun 26.
  • 77°F
  • 61°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph ENE
  • Humidity: 56%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:14 am 8:57 pm EDT
FriJun 27.
  • 75°F
  • 63°F
Showers
Showers
  • Wind: 9mph E
  • Humidity: 70%
  • UV index: 5
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • 5:14 am 8:57 pm EDT
SatJun 28.
  • 79°F
  • 61°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 9mph SW
  • Humidity: 75%
  • UV index: 6
  • Precip. probability: 38%
  • Precipitation: 0.35"
  • 5:15 am 8:57 pm EDT
SunJun 29.
  • 82°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 66%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • 5:15 am 8:57 pm EDT
For the next ten days, a combination of primarily cloud-filled and occasionally rain-filled and unstable weather is expected.
Rainfall is predicted for Sunday, next Friday through next Sunday.
Substantial differences in temperature are forecasted in the upcoming days. Forecast highs will fluctuate between 24°C and 36°C, while there will be also a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 12°C and 24°C.
Monday will be the hottest day, with a maximum temperature of 36°C; the coldest days will be Friday and next Friday, with a maximum of 24°C.
Combining with the humidity, the maximum feel-like temperature may increase significantly and range between 24°C and a searing 50°C.
Updated: Jun 20, 2025 @ 04:43:17 UTC
Published by: Weather Atlas | About Us
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