Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be -11°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:01 on Sunday 14th December 2025 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 Sunday 14th December 2025

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of -11°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the north-west.

  • -11°C maximum temperature-11
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -18°C wind chill-18
    °C wind chill
  • Gentle breeze of 16 kph from the North-West16
    kph wind from NW

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Ottawa weather for Monday 15th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of -9°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 14 kph from the west.

  • -9°C maximum temperature-9
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -15°C wind chill-15
    °C wind chill
  • Gentle breeze of 14 kph from the West14
    kph wind from W

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Ottawa weather for Tuesday 16th December 2025

Expect mostly cloudy with light snow in Ottawa, Ontario with a maximum temperature of -3°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 10% chance of some snow and a moderate breeze of 20 kph from the south.

  • -3°C maximum temperature-3
    °C maximum temperature
  • -13°C minimum temperature-13
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 10% chance of some snow10
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -9°C wind chill-9
    °C wind chill
  • Moderate breeze of 20 kph from the South20
    kph wind from S

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Ottawa weather for Wednesday 17th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -10°C minimum temperature-10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 23 kph from the South-West23
    kph wind from SW

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Ottawa weather for Thursday 18th December 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 3°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 74% chance of some sleet or snow and a moderate breeze of 23 kph from the south-east.

  • 3°C maximum temperature3
    °C maximum temperature
  • -11°C minimum temperature-11
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 74% chance of some sleet or snow74
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • -2°C wind chill-2
    °C wind chill
  • Moderate breeze of 23 kph from the South-East23
    kph wind from SE

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Metric (°C / mm)  |  Imperial (°F / inches)

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