Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be -4°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:01 on Tuesday 24th February 2026 GMT

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

Thunder Bay weather forecast by day

Below are the detailed weather forecasts for Thunder Bay for the next 5 days.

Thunder Bay weather for Tuesday 24th February 2026

Expect mostly cloudy with snow in Thunder Bay, Ontario with a maximum temperature of -4°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 cm of snow expected with 100% chance of some snow and a moderate breeze of 22 kph from the south-east.

  • -4°C maximum temperature-4
    °C maximum temperature
  • -17°C minimum temperature-17
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 100% chance of some snow100
    % chance of some snow
  • 5-10 cm of snow expected<10
    cm of snow expected
  • -11°C wind chill-11
    °C wind chill
  • Moderate breeze of 22 kph from the South-East22
    kph wind from SE

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Thunder Bay weather for Wednesday 25th February 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of -10°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 20 kph from the north-west.

  • -10°C maximum temperature-10
    °C maximum temperature
  • -19°C minimum temperature-19
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -18°C wind chill-18
    °C wind chill
  • Moderate breeze of 20 kph from the North-West20
    kph wind from NW

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Thunder Bay weather for Thursday 26th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of -6°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 51% chance of some snow and a light breeze of 11 kph from the south.

  • -6°C maximum temperature-6
    °C maximum temperature
  • -20°C minimum temperature-20
    °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)
  • 51% chance of some snow51
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -11°C wind chill-11
    °C wind chill
  • Light breeze of 11 kph from the South11
    kph wind from S

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Thunder Bay weather for Friday 27th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of 2°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 30% chance of some snow and a moderate breeze of 28 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -10°C minimum temperature-10
    °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)
  • 30% chance of some snow30
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 28 kph from the West28
    kph wind from W

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Thunder Bay weather for Saturday 28th February 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of -10°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 27 kph from the north-west.

  • -10°C maximum temperature-10
    °C maximum temperature
  • -19°C minimum temperature-19
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -19°C wind chill-19
    °C wind chill
  • Moderate breeze of 27 kph from the North-West27
    kph wind from NW

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

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