Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 0°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 Thursday 5th 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 Thursday 5th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of 0°C and 2 hours of bright sunshine. There are 2-5 cm of snow expected with 23% chance of some snow and a light breeze of 11 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 23% chance of some snow23
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -4°C wind chill-4
    °C wind chill
  • Light breeze of 11 kph from the West11
    kph wind from W

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Thunder Bay weather for Friday 6th February 2026

Expect clear skies with flurries of snow in Thunder Bay, Ontario with a maximum temperature of -4°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 3% chance of some snow and a moderate breeze of 23 kph from the north-west.

  • -4°C maximum temperature-4
    °C maximum temperature
  • -21°C minimum temperature-21
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 3% chance of some snow3
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -11°C wind chill-11
    °C wind chill
  • Moderate breeze of 23 kph from the North-West23
    kph wind from NW

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Thunder Bay weather for Saturday 7th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of -12°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 71% chance of some snow and a light breeze of 11 kph from the north-west.

  • -12°C maximum temperature-12
    °C maximum temperature
  • -24°C minimum temperature-24
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 71% chance of some snow71
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -18°C wind chill-18
    °C wind chill
  • Light breeze of 11 kph from the North-West11
    kph wind from NW

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Thunder Bay weather for Sunday 8th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of -5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 36% chance of some snow and a light breeze of 11 kph from the south-east.

  • -5°C maximum temperature-5
    °C maximum temperature
  • -12°C minimum temperature-12
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 36% chance of some snow36
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -10°C wind chill-10
    °C wind chill
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

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Thunder Bay weather for Monday 9th February 2026

Expect mostly cloudy with light snow in Thunder Bay, Ontario with a maximum temperature of -1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 63% chance of some snow and a light breeze of 11 kph from the east.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 63% chance of some snow63
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Light breeze of 11 kph from the East11
    kph wind from E

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

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