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Thunder Bay ON Weather - Cloudy
Cloudy
48°F
Updated 2:16 am
Feels Like 43°F
Humidity 67%
Wind SSE 11 mph
Barometer  30.09 in
Visibility 6 mi
Thunder Bay ON Weather - Cloudy
Cloudy
9°C
Updated 2:16 am
Feels Like 6°C
Humidity 67%
Wind SSE 17 km/h
Barometer  101.9 kPa
Visibility 10 km
Thunder Bay, ON Weather and Current Conditionsthunder bay on weather forecast

Thunder Bay, ON Weather Forecast

Thunder Bay Ontario WeatherThunder Bay, Ontario Weather Weather Forecast
14 day API weather forecast for Thunder Bay, Ontario. Note: The 7-day weather forecast for Thunder Bay, ON is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Thunder Bay, ON Weather Forecast Dated: 216 AM Tue Oct 06 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Tuesday, October 6, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-06 - Morning - Partly Cloudy
10°C 51°F
Partly Cloudy
Mid-Afternoon
Thunder Bay Weather - 2026-10-06 - Afternoon - Overcast
15°C 60°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-06 - Evening - Overcast
15°C 59°F
Overcast
Refreshing around 15°C 60°F, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the SSE to the WNW at 13 km/h 9 mph.

Wednesday, October 7, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-07 - Morning - Overcast
9°C 49°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-07 - Afternoon - Nearby Thunderstorms
17°C 62°F
Nearby Thunderstorms
Early-Evening
Thunder Bay Weather - 2026-10-07 - Evening - Nearby Thunderstorms
14°C 57°F
Nearby Thunderstorms
Mildly cool near 17°C 62°F, locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds building from W at 11 km/h 7 mph to NW at 25 km/h 16 mph. Gusts up to 42 km/h 27 mph.

Thursday, October 8, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-08 - Morning - Sunny
8°C 46°F
Sunny
Mid-Afternoon
Thunder Bay Weather - 2026-10-08 - Afternoon - Overcast
13°C 55°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-08 - Evening - Overcast
11°C 51°F
Overcast
Chilly near 13°C 55°F, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the WNW to the NW at 16 km/h 10 mph.

Friday, October 9, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-09 - Morning - Overcast
5°C 41°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-09 - Afternoon - Partly Cloudy
11°C 52°F
Partly Cloudy
Early-Evening
Thunder Bay Weather - 2026-10-09 - Evening - Overcast
10°C 48°F
Overcast
Crisp with a high near 11°C 52°F, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the NW to the S at 14 km/h 9 mph.

Saturday, October 10, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-10 - Morning - Overcast
10°C 51°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-10 - Afternoon - Overcast
15°C 58°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-10 - Evening - Partly Cloudy
14°C 58°F
Partly Cloudy
Refreshing around 15°C 58°F, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds tapering down from SE 31 km/h 19 mph to SSW 12 km/h 8 mph.

Sunday, October 11, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-11 - Morning - Overcast
14°C 58°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-11 - Afternoon - Overcast
11°C 51°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-11 - Evening - Overcast
7°C 45°F
Overcast
Cool and brisk at 11°C 51°F, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure rising. Winds turning from the WNW to the NNE at 29 km/h 18 mph. Gusts up to 36 km/h 22 mph.

Monday, October 12, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-12 - Morning - Overcast
4°C 40°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-12 - Afternoon - Overcast
5°C 41°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-12 - Evening - Drizzle
5°C 42°F
Drizzle
Nippy around 5°C 41°F, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure. Winds switching from the NE to the ESE at 15 km/h 10 mph.

Tuesday, October 13, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-13 - Morning - Drizzle
8°C 47°F
Drizzle
Mid-Afternoon
Thunder Bay Weather - 2026-10-13 - Afternoon - Fog
10°C 50°F
Fog
Early-Evening
Thunder Bay Weather - 2026-10-13 - Evening - Fog
10°C 50°F
Fog
Crisp with a high near 10°C 50°F, scattered morning showers before drying out later, with steady humidity and barometric pressure falling. Winds tapering down from E 25 km/h 16 mph to NNW 7 km/h 4 mph.

Wednesday, October 14, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-14 - Morning - Light Rain
9°C 48°F
Light Rain
Mid-Afternoon
Thunder Bay Weather - 2026-10-14 - Afternoon - Sunny
10°C 50°F
Sunny
Early-Evening
Thunder Bay Weather - 2026-10-14 - Evening - Sunny
11°C 51°F
Sunny
Brisk around 10°C 50°F, morning showers, giving way to clearing skies, with lower humidity and barometric pressure rising. Winds swinging from the NNW to the NW at 17 km/h 11 mph. Gusts up to 36 km/h 22 mph.

Thursday, October 15, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-15 - Morning - Sunny
5°C 40°F
Sunny
Mid-Afternoon
Thunder Bay Weather - 2026-10-15 - Afternoon - Sunny
7°C 45°F
Sunny
Early-Evening
Thunder Bay Weather - 2026-10-15 - Evening - Sunny
6°C 44°F
Sunny
Cool and brisk at 7°C 45°F, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds shifting from the WSW to the SE at 14 km/h 9 mph.

Friday, October 16, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-16 - Morning - Overcast
7°C 44°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-16 - Afternoon - Drizzle
8°C 47°F
Drizzle
Early-Evening
Thunder Bay Weather - 2026-10-16 - Evening - Sunny
8°C 46°F
Sunny
Chilly near 8°C 47°F, clouds building with afternoon showers likely, with lower humidity and barometric pressure falling. Winds building from SSW at 12 km/h 7 mph to NW at 26 km/h 17 mph. Gusts up to 44 km/h 27 mph.

Saturday, October 17, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-17 - Morning - Sunny
1°C 34°F
Sunny
Mid-Afternoon
Thunder Bay Weather - 2026-10-17 - Afternoon - Sunny
5°C 41°F
Sunny
Early-Evening
Thunder Bay Weather - 2026-10-17 - Evening - Sunny
4°C 39°F
Sunny
Cold with a high near 5°C 41°F, sunny throughout the day, with lower humidity and steady pressure. Winds decreasing from NNW 29 km/h 18 mph to WNW 13 km/h 8 mph.

Sunday, October 18, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-18 - Morning - Overcast
5°C 41°F
Overcast
Mid-Afternoon
Thunder Bay Weather - 2026-10-18 - Afternoon - Overcast
8°C 46°F
Overcast
Early-Evening
Thunder Bay Weather - 2026-10-18 - Evening - Sunny
9°C 48°F
Sunny
Brisk around 8°C 46°F, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds moving from the SSW to the SW at 29 km/h 18 mph. Gusts up to 52 km/h 32 mph.

Monday, October 19, 2026

Mid-Morning
Thunder Bay Weather - 2026-10-19 - Morning - Cloudy
8°C 47°F
Cloudy
Mid-Afternoon
Thunder Bay Weather - 2026-10-19 - Afternoon - Sunny
14°C 57°F
Sunny
Early-Evening
Thunder Bay Weather - 2026-10-19 - Evening - Sunny
12°C 54°F
Sunny
Cool and brisk at 14°C 57°F, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the WNW to the WSW at 12 km/h 7 mph.

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Weather by the Numbers

Tue, 6th
Thunder Bay ON Weather - Tuesday, Oct 6, 2026 - Patchy Rain Nearby
Hi: 16°C 61°F
Lo: 8°C 47°F
Sunrise 08:04 AM
Sunset 07:26 PM
Wind SSW 22 km/h14 mph
Dew Point 10°C51°F
uv Index 1
Barometric Pressure 100.7 kPa29.74 in
POP 37% *
Humidity 82%
Wed, 7th
Thunder Bay ON Weather - Wednesday, Oct 7, 2026 - Thundery Outbreaks In Nearby
Hi: 17°C 63°F
Lo: 9°C 48°F
Sunrise 08:05 AM
Sunset 07:24 PM
Wind WSW 11 km/h7 mph
Dew Point 7°C45°F
uv Index 2
Barometric Pressure 100.6 kPa29.71 in
POP 14% *
Humidity 65%
Thu, 8th
Thunder Bay ON Weather - Thursday, Oct 8, 2026 - Patchy Rain Nearby
Hi: 13°C 56°F
Lo: 7°C 45°F
Sunrise 08:07 AM
Sunset 07:22 PM
Wind NW 23 km/h14 mph
Dew Point 2°C36°F
uv Index 2
Barometric Pressure 101.6 kPa30 in
POP 14% *
Humidity 54%
Fri, 9th
Thunder Bay ON Weather - Friday, Oct 9, 2026 - Overcast
Hi: 11°C 52°F
Lo: 5°C 41°F
Sunrise 08:08 AM
Sunset 07:20 PM
Wind NW 8 km/h5 mph
Dew Point 2°C36°F
uv Index 2
Barometric Pressure 102.3 kPa30.21 in
POP 16% *
Humidity 63%
Sat, 10th
Thunder Bay ON Weather - Saturday, Oct 10, 2026 - Patchy Rain Nearby
Hi: 16°C 60°F
Lo: 9°C 48°F
Sunrise 08:10 AM
Sunset 07:18 PM
Wind SSE 27 km/h17 mph
Dew Point 10°C49°F
uv Index 3
Barometric Pressure 101.1 kPa29.85 in
POP 34% *
Humidity 82%
Sun, 11th
Thunder Bay ON Weather - Sunday, Oct 11, 2026 - Cloudy
Hi: 17°C 62°F
Lo: 6°C 43°F
Sunrise 08:11 AM
Sunset 07:16 PM
Wind SW 26 km/h16 mph
Dew Point 9°C48°F
uv Index 3
Barometric Pressure 100.9 kPa29.8 in
POP 18% *
Humidity 74%
Mon, 12th
Thunder Bay ON Weather - Monday, Oct 12, 2026 - Patchy Rain Nearby
Hi: 6°C 42°F
Lo: 4°C 39°F
Sunrise 08:13 AM
Sunset 07:14 PM
Wind NE 16 km/h10 mph
Dew Point -1°C30°F
uv Index 1
Barometric Pressure 102.6 kPa30.3 in
POP 17% *
Humidity 66%
Tue, 13th
Thunder Bay ON Weather - Tuesday, Oct 13, 2026 - Light Drizzle
Hi: 10°C 50°F
Lo: 6°C 42°F
Sunrise 08:14 AM
Sunset 07:12 PM
Wind ESE 18 km/h11 mph
Dew Point 9°C48°F
uv Index 2
Barometric Pressure 101.4 kPa29.94 in
POP 70% *
Humidity 96%
Wed, 14th
Thunder Bay ON Weather - Wednesday, Oct 14, 2026 - Light Drizzle
Hi: 13°C 55°F
Lo: 9°C 48°F
Sunrise 08:16 AM
Sunset 07:10 PM
Wind NW 17 km/h11 mph
Dew Point 7°C45°F
uv Index 2
Barometric Pressure 100.8 kPa29.77 in
POP 69% *
Humidity 91%
Thu, 15th
Thunder Bay ON Weather - Thursday, Oct 15, 2026 - Partly Cloudy
Hi: 8°C 47°F
Lo: 4°C 39°F
Sunrise 08:17 AM
Sunset 07:08 PM
Wind NE 18 km/h11 mph
Dew Point 0°C32°F
uv Index 3
Barometric Pressure 103.1 kPa30.45 in
POP 6% *
Humidity 66%
Fri, 16th
Thunder Bay ON Weather - Friday, Oct 16, 2026 - Light Drizzle
Hi: 9°C 48°F
Lo: 5°C 41°F
Sunrise 08:19 AM
Sunset 07:06 PM
Wind SW 9 km/h6 mph
Dew Point 4°C40°F
uv Index 2
Barometric Pressure 101.1 kPa29.85 in
POP 34% *
Humidity 79%
Sat, 17th
Thunder Bay ON Weather - Saturday, Oct 17, 2026 - Sunny
Hi: 6°C 42°F
Lo: 1°C 33°F
Sunrise 08:20 AM
Sunset 07:04 PM
Wind NW 25 km/h15 mph
Dew Point -6°C22°F
uv Index 2
Barometric Pressure 102.4 kPa30.24 in
POP 3% *
Humidity 55%
Sun, 18th
Thunder Bay ON Weather - Sunday, Oct 18, 2026 - Overcast
Hi: 9°C 49°F
Lo: 2°C 35°F
Sunrise 08:22 AM
Sunset 07:02 PM
Wind SSW 35 km/h21 mph
Dew Point 1°C33°F
uv Index 2
Barometric Pressure 101.7 kPa30.03 in
POP 16% *
Humidity 64%
Mon, 19th
Thunder Bay ON Weather - Monday, Oct 19, 2026 - Sunny
Hi: 14°C 58°F
Lo: 7°C 45°F
Sunrise 08:23 AM
Sunset 07:00 PM
Wind W 14 km/h9 mph
Dew Point 4°C39°F
uv Index 4
Barometric Pressure 100.9 kPa29.8 in
POP 7% *
Humidity 62%
* POP = Probability of Precipitation. Data for 12:00 PM.