Thunder Bay Weather Update – Wednesday, July 16, 2025

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The Viking Polaris Leaving Thunder Bay marking the end of the 2023 Cruising Season
The Viking Polaris Leaving Thunder Bay marking the end of the 2023 Cruising Season

Current Conditions (7:00 AM EDT):
📍 Observed at Thunder Bay Airport
🌡️ Temperature: 11°C
☁️ Condition: Mostly Cloudy
💧 Humidity: 90%
💨 Wind: NNE at 5 km/h
🌡️ Dew Point: 9.4°C
📈 Pressure: 101.8 kPa (Rising)
👁️ Visibility: 32 km

Thunder Bay – Weather – While southern Ontario is under a heat warning, across Northwestern Ontario we are experiencing almost spring like weather instead of the usual mid-July heat. There is lots of rain in the forecast, which is going to help with regional wildfires.

☁️ Today’s Forecast – July 16

Expect cloudy skies with a 30% chance of showers early this morning.
🌬️ Winds from the northeast at 20 km/h will ease by this afternoon.
🌡️ High: 21°C
🔆 UV Index: 8 – Very High
📢 Use sunscreen, wear a hat and sunglasses if you’ll be outside for extended periods.


🌙 Tonight – July 16

Mainly cloudy in the evening, clearing before morning.
🌡️ Low: 12°C


☀️ Thursday, July 17

A sunny start, then becoming a mix of sun and cloud near noon.
🌬️ Winds NW 20 km/h, becoming light later in the day.
🌡️ High: 23°C
🔆 UV Index: 8 – Very High
🌙 Night: Clear. Low: 8°C


🌞 Friday, July 18

☀️ Sunny with a high of 22°C
🌙 Night: Cloudy periods with a 30% chance of showers. Low: 12°C


🌦️ Saturday, July 19

🌤️ Mix of sun and cloud with a 60% chance of showers
🌡️ High: 22°C
🌙 Night: Cloudy periods. Low: 10°C


🧥 Wardrobe Tip:

Layers are key today – it’s a cooler start but temps will rise by afternoon. Bring a light jacket for the early hours and sunscreen for mid-day UV exposure.

🌎 Weather Trivia:

Did you know? Thunder Bay’s proximity to Lake Superior helps moderate summer temperatures – keeping mornings cool and afternoons comfortably warm.


Ningodwaaswi‑giizhigad (Wednesday), Odoongizid Giizis (July) 16, 2025 – Gaawiin Omaa Tadiziiizhig (Thunder Bay Aki‑giizhigad Bimaadiziwin)


🌅 Boozhoo nbiishens – 7:00 AM EDT

📍 Thunder Bay Airport

  • Inaabiwin: 11°C

  • Giiwashkwebii’igan (Dew point): 9.4°C

  • Giiyaandamowin (Humidity): 90%

  • Noodin (Wind): Giiwedinong-giizhigad 5 km/h (NNE)

  • Aki Mazinibii’igan (Pressure): 101.8 kPa – bimiishkaad (rising)

  • Mikinaak Aki (Visibility): 32 km

  • Izhiwebad: Gashkigwaasowin (Mostly cloudy)


☁️ Nongom – Ningodwaaswi‑giizhigad

  • Gaawiin gizhiiyaag noonjing – 30% chance of nagamowin (showers)

  • Noodin: Zhaawanoong 20 km/h, miinawaa biiziganed gegoo nbiishens

  • High Inaabiwin: 21°C

  • UV Index: 8 (Gichi-noondaagozi – Very High)


🌙 Dibikong – Giiwaabandam Ningodwaaswi‑giizhigad

  • Gashkigwaaso-biboon giizis, mii dash giiwaabandam – Low Inaabiwin: 12°C


☀️ Niizhwaaswi‑giizhigad (Thursday), Giizhigad:

  • Waawaashkeshi-biindaakoojigan, mii dash da-izhiwebak gimiwan noonjing

  • Inaabiwin: 23°C

  • UV Index: 8 (Gichi-noondaagozi)

  • Dibikad: Waaskonebii’igan – Low: 8°C


🌞 Niswi‑giizhigad (Friday)

  • Waawaashkeshi-biindaakoojigan

  • High: 22°C

  • Night: Gashkigwaaso‑maanmiinawaa 30% nagamowin – Low: 12°C


🌦️ Niizh‑giizhigad (Saturday)

  • Waawaashkeshi–gimiwan mibiiwaabikoowin miinawaa 60% nagamowin

  • High: 22°C

  • Night: Gashkigwaaso‑maanmiinawaa – Low: 10°C


👕 Miikana Inaabaadagigan

  • Zhaawanong da-giiwekaadiz, miinawaa mizhakwadizh – azaagikan mii go baashkizikan

  • Waawaashkeshi da-waabandaman – gichi‑noondaagozi UV, gii‑bigwendam


🌎 Mazina’igan Gikendaasowin

Lake Superior gaa‑izhiwebak niizh‑giizhigad misi‑zaaga’iganing, gii‑maanmiinag zhaawanong inaabiwin miinawaa gashkigwaaso gimiwan.

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