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Monthly weather forecast in Thunder Bay

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

18 August, sun

	747 mmHg		64%
	3.1 m/s

Climate normal

18 August, Sunday. day, 24°; night, 14°; partly cloudy

19 August, mon

	751 mmHg		56%
	2.8 m/s		+13

Climate normal

19 August, Monday. day, 21°; night, 10°; mostly clear

20 August, tue

	753 mmHg		61%
	3.9 m/s		+14

Climate normal

20 August, Tuesday. day, 19°; night, 10°; clear

21 August, wed

	750 mmHg		64%
	4 m/s		+14

Climate normal

21 August, Wednesday. day, 21°; night, 13°; mostly clear

22 August, thu

	748 mmHg		72%
	4.4 m/s		+13

Climate normal

22 August, Thursday. day, 24°; night, 17°; light rain

23 August, fri

	744 mmHg		77%
	3.1 m/s		+12

Climate normal

23 August, Friday. day, 24°; night, 18°; partly cloudy

24 August, sat

	746 mmHg		75%
	2.7 m/s		+13

Climate normal

24 August, Saturday. day, 26°; night, 18°; partly cloudy

25 August, sun

	743 mmHg		79%
	3 m/s		+14

Climate normal

25 August, Sunday. day, 25°; night, 19°; partly cloudy

26 August, mon

	745 mmHg		54%
	5.3 m/s		+15

Climate normal

26 August, Monday. day, 25°; night, 16°; partly cloudy

27 August, tue

	742 mmHg		61%
	5.4 m/s		+13

Climate normal

27 August, Tuesday. day, 27°; night, 16°; light rain

28 August, wed

	743 mmHg		61%
	4.4 m/s		+13

Climate normal

28 August, Wednesday. day, 23°; night, 15°; overcast

29 August, thu

	744 mmHg		74%
	3.9 m/s

Climate normal

29 August, Thursday. day, 22°; night, 15°; partly cloudy

30 August, fri

	741 mmHg		59%
	4.7 m/s

Climate normal

30 August, Friday. day, 22°; night, 14°; partly cloudy

31 August, sat

	742 mmHg		75%
	4.8 m/s

Climate normal

31 August, Saturday. day, 16°; night, 15°; clear

1 September, sun

	740 mmHg		77%
	4 m/s

Climate normal

1 September, Sunday. day, 18°; night, 16°; rain

2 September, mon

	738 mmHg		85%
	4.4 m/s

Climate normal

2 September, Monday. day, 18°; night, 16°; light rain

3 September, tue

	739 mmHg		90%
	3.4 m/s

Climate normal

3 September, Tuesday. day, 17°; night, 16°; mostly clear

4 September, wed

	740 mmHg		79%
	1.4 m/s

Climate normal

4 September, Wednesday. day, 18°; night, 17°; clear

5 September, thu

	739 mmHg		71%
	4.3 m/s

Climate normal

5 September, Thursday. day, 20°; night, 18°; clear

6 September, fri

	739 mmHg		80%
	4.6 m/s

Climate normal

6 September, Friday. day, 19°; night, 16°; clear

7 September, sat

	737 mmHg		86%
	4.3 m/s

Climate normal

7 September, Saturday. day, 18°; night, 16°; mostly clear

8 September, sun

	734 mmHg		92%
	3.4 m/s

Climate normal

8 September, Sunday. day, 17°; night, 17°; rain

9 September, mon

	734 mmHg		82%
	4 m/s

Climate normal

9 September, Monday. day, 17°; night, 15°; partly cloudy

10 September, tue

	733 mmHg		81%
	7 m/s

Climate normal

10 September, Tuesday. day, 15°; night, 13°; rain

11 September, wed

	733 mmHg		67%
	6.2 m/s

Climate normal

11 September, Wednesday. day, 17°; night, 15°; clear

12 September, thu

	736 mmHg		64%
	4.8 m/s

Climate normal

12 September, Thursday. day, 15°; night, 11°; clear

13 September, fri

	739 mmHg		62%
	6.5 m/s

Climate normal

13 September, Friday. day, 11°; night, 9°; mostly clear

14 September, sat

	742 mmHg		53%
	4.9 m/s

Climate normal

14 September, Saturday. day, 13°; night, 12°; mostly clear

15 September, sun

	731 mmHg		92%
	11.3 m/s

Climate normal

15 September, Sunday. day, 13°; night, 9°; rain

16 September, mon

	736 mmHg		65%
	5.8 m/s

Climate normal

16 September, Monday. day, 11°; night, 11°; partly cloudy

17 September, tue

	739 mmHg		62%
	3.2 m/s

Climate normal

17 September, Tuesday. day, 13°; night, 11°; partly cloudy

Average data for 10 years

Next, the average data for 10 years

18 September, wed

	730 mmHg		73%
	5.5 m/s		+13

18 September, Wednesday. day, 15°; night, 10°; partly cloudy

19 September, thu

	726 mmHg		70%
	6.6 m/s		+13

19 September, Thursday. day, 17°; night, 13°; clear

20 September, fri

	728 mmHg		67%
	6.5 m/s		+13

20 September, Friday. day, 14°; night, 13°; rain

21 September, sat

	732 mmHg		70%
	5 m/s		+13

21 September, Saturday. day, 14°; night, 11°; clear

Average for 30 days

15

sunny days

5

days with precipitation

10

cloudy days

15 sunny days; 5 days with precipitation; 10 cloudy days;

72

%

air humidity

4.5

m/s

WindSW

6

mm of precipitation

(1% of annual average)

+13

°C

Water temperature

air humidity 72%; 6 millimeters of precipitation (1% of annual average); Wind south-westerly 4.5 Meters per second; Water temperature +13°

Forecast in graphs

TemperatureHumidity, %Wind, m/sPressure, mmHg

NE

SE

S

S

SW

SE

SE

NW

W

SW

S

W

NW

SW

SW

NE

SW

W

E

SE

W

N

NW

SW

NW

NW

SE

NW

N

W

19

Average data for 10 years

20

21

22

23

24

25

26

27

28

29

30

31

1

September

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Daytime temperature

Night-time temperature

Weather forecast for the month based on historical data from the last 10 years.

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