Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 36°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:00 on Tuesday 14th July 2026 GMT

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The 5-day weather forecast for Ontario (Ottawa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Ottawa weather forecast by day

Below are the detailed weather forecasts for Ottawa for the next 5 days.

Ottawa weather for Tuesday 14th July 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 21 kph from the west.

  • 36°C maximum temperature36
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 57% chance of some rain57
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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Ottawa weather for Wednesday 15th July 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 22 kph from the West22
    kph wind from W

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Ottawa weather for Thursday 16th July 2026

Expect sunshine and showers in Ottawa, Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 23% chance of some rain and a moderate breeze of 23 kph from the west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 23% chance of some rain23
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 23 kph from the West23
    kph wind from W

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Ottawa weather for Friday 17th July 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Gentle breeze of 15 kph from the North-West15
    kph wind from NW

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Ottawa weather for Saturday 18th July 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 24°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the west.

  • 24°C maximum temperature24
    °C maximum temperature
  • 14°C minimum temperature14
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 9 kph from the West9
    kph wind from W

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