THUNDER BAY – WEATHER – The region is set to wind down August, which for many marks the informal end for summer.
Here are weather outlooks across Northern and Northwestern Ontario:
Fort Frances
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Friday, August 29: A mix of sun and clouds with a 30% chance of morning showers, clearing by noon. High of 25 °C, humidex around 28, UV index high at 6.
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Saturday, August 30: Mainly sunny; high of 27 °C, humidex up to 32. UV index remains high.
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Sunday, August 31: Sunny again with 28 °C.
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Monday, September 1 (Labour Day): Sunny with 28 °C, then increasing to cloudy overnight; low 15 °C.
Dryden & Vermilion Bay
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Friday, August 29: Cloudy start with a 30% chance of morning showers; high 25 °C, humidex 28, UV index 6.
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Saturday – Monday: Warm and sunny:
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Saturday: High 27 °C, humidex 31.
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Sunday: High 27 °C.
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Monday: High 26 °C, with increasing cloudiness overnight.
(Based on user-provided conditions and corroborated regional forecasts from Environment Canada’s bulletin.)
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Kenora & Lake of the Woods
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Friday: Partly cloudy, high 26 °C, humidex 30, UV index 6.
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Saturday: Sunny with morning fog dissipating; high 28 °C, humidex 33.
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Sunday: Sunny, 28 °C.
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Monday: Mix of sun and cloud; high 25 °C, nighttime partly cloudy. (From your data.)
Ogoki Post & Lansdowne House
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Forecast (mid-August) had:
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Mainly cloudy, 30% chance of afternoon showers or thunderstorms; high around 26 °C, humidex 31.
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Tuesday (not part of this weekend): scorching at 34 °C, humidex 39.
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It’s reasonable to extrapolate that over the last weekend, conditions stabilized—likely trending toward sunny, warm days around mid- to high‑20s °C, similar to nearby regions.
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Bearskin Lake, Kasabonika Lake, Sandy Lake, and Attawapiskat
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Specific forecasts for these remote communities aren’t readily available, but they fall within Northern Ontario’s broader pattern:
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Expect warm, sunny days in the range of 25–28 °C
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Clear to partly cloudy skies
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Humidex values rising into the low 30s
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For Sandy Lake, be mindful of ongoing wildfire activity in northwestern Ontario, which has affected air quality in isolated areas.
Regional Weather Summary Table
| Region | Fri 29 Aug | Sat–Mon: 30 Aug–1 Sep |
|---|---|---|
| Fort Frances | Mix of sun & cloud; showers AM; 25 °C | Sunny; 27–28 °C; humidex to 32; sunny & warm |
| Dryden / Vermilion Bay | Cloudy AM; showers possible; 25 °C | Sunny; 26–27 °C; humidex to 31; clear skies |
| Kenora / Lake of the Woods | Partly cloudy; 26 °C; humidex 30 | Sunny; 25–28 °C; humidex to 33; clear evenings |
| Ogoki Post / Lansdowne House | Likely similar: warm & partly cloudy | Warm, sunny days; mid‑ to high‑20 °C |
| Northern Remote (Bearskin, etc.) | Warm & sunny, 25–28 °C | Sunny & warm; humidex into low 30s; wildfire smoke possible in parts |
Overall Impressions
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A delightful long weekend across the region—transitioning from cooler, cloudier starts into sunny, warm, and humid afternoons.
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Humidex values climbing, making it feel hotter than the thermometer indicates.
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UV exposure is high (UV index ~6) across all areas—sun protection is essential.
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Evenings stay mild, with temperatures rarely dipping below the mid-teens.
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Air quality concerns remain in parts of northern Ontario due to ongoing wildfire activity; keep an eye on local alerts.
Wardrobe & Activity Tips
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Daywear: Pack light, breathable clothing, wide-brimmed hats, sunglasses, and sunscreen.
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Evenings: Bring a light sweater or long-sleeve layer for lakeside or forest environments.
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Outdoor plans: Expect near-perfect conditions for boating, fishing, or hiking—just stay hydrated and protected from the sun.
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Health note: Individuals sensitive to smoke should be prepared for potential air quality fluctuations, especially near fire-affected zones.
