Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 63°F. 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 Saturday 18th October 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 Saturday 18th October 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 63°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 4% chance of some rain and a gentle breeze of 9 mph from the south-east.

  • 63°F maximum temperature63
    °F maximum temperature
  • 48°F minimum temperature48
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 4% chance of some rain4
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 63°F wind chill63
    °F wind chill
  • Gentle breeze of 9 mph from the South-East9
    mph wind from SE

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Ottawa weather for Sunday 19th October 2025

Expect sunshine and showers in Ottawa, Ontario with a maximum temperature of 73°F, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 13 mph from the south-east.

  • 73°F maximum temperature73
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 32% chance of some rain32
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 13 mph from the South-East13
    mph wind from SE

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Ottawa weather for Monday 20th October 2025

Expect cloudy with some rain in Ottawa, Ontario with a maximum temperature of 64°F, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a gentle breeze of 12 mph from the west.

  • 64°F maximum temperature64
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 78% chance of some rain78
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 64°F wind chill64
    °F wind chill
  • Gentle breeze of 12 mph from the West12
    mph wind from W

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Ottawa weather for Tuesday 21st October 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 59°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 9 mph from the south.

  • 59°F maximum temperature59
    °F maximum temperature
  • 50°F minimum temperature50
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 48% chance of some rain48
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 9 mph from the South9
    mph wind from S

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Ottawa weather for Wednesday 22nd October 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 9 mph from the west.

  • 55°F maximum temperature55
    °F maximum temperature
  • 46°F minimum temperature46
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 62% chance of some rain62
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 55°F wind chill55
    °F wind chill
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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