Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 2°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 Wednesday 17th 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 Wednesday 17th December 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 2°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 22 kph from the south-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 58% chance of some rain58
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 22 kph from the South-West22
    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 2°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 46% chance of some sleet or snow and a gentle breeze of 18 kph from the south.

  • 2°C maximum temperature2
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 46% chance of some sleet or snow46
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • -3°C wind chill-3
    °C wind chill
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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Ottawa weather for Friday 19th December 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 68% chance of some sleet or snow and a moderate breeze of 27 kph from the west.

  • 6°C maximum temperature6
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 68% chance of some sleet or snow68
    % chance of some sleet or snow
  • 5-10 mm of sleet/snow expected<10
    mm of sleet/snow expected
  • 1°C wind chill1
    °C wind chill
  • Moderate breeze of 27 kph from the West27
    kph wind from W

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Ottawa weather for Saturday 20th December 2025

Expect mostly cloudy with snow in Ottawa, Ontario with a maximum temperature of -4°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 cm of snow expected with 83% chance of some snow and a moderate breeze of 25 kph from the west.

  • -4°C maximum temperature-4
    °C maximum temperature
  • -10°C minimum temperature-10
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 83% chance of some snow83
    % chance of some snow
  • 5-10 cm of snow expected<10
    cm of snow expected
  • -10°C wind chill-10
    °C wind chill
  • Moderate breeze of 25 kph from the West25
    kph wind from W

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Ottawa weather for Sunday 21st December 2025

Expect mostly cloudy with light snow in Ottawa, Ontario with a maximum temperature of -1°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 33% chance of some snow and a moderate breeze of 22 kph from the west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -12°C minimum temperature-12
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 33% chance of some snow33
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -7°C wind chill-7
    °C wind chill
  • Moderate breeze of 22 kph from the West22
    kph wind from W

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

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