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August weather forecast in Duncan

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

27 July, sun

	744 mmHg		63%
	2.4 m/s		+13

27 July, Sunday. day, 26°; night, 15°; clear

28 July, mon

	744 mmHg		64%
	2.5 m/s		+13

28 July, Monday. day, 26°; night, 15°; clear

29 July, tue

	744 mmHg		63%
	2.4 m/s		+13

29 July, Tuesday. day, 26°; night, 15°; clear

30 July, wed

	744 mmHg		61%
	2.4 m/s		+13

30 July, Wednesday. day, 26°; night, 15°; clear

31 July, thu

	744 mmHg		62%
	2.5 m/s		+13

31 July, Thursday. day, 26°; night, 15°; clear

1 August, fri

	744 mmHg		63%
	2.6 m/s		+13

1 August, Friday. day, 25°; night, 14°; clear

2 August, sat

	744 mmHg		65%
	2.5 m/s		+13

2 August, Saturday. day, 25°; night, 14°; clear

3 August, sun

	744 mmHg		65%
	2.3 m/s		+13

3 August, Sunday. day, 25°; night, 15°; clear

4 August, mon

	743 mmHg		63%
	2.4 m/s		+13

4 August, Monday. day, 26°; night, 14°; clear

5 August, tue

	743 mmHg		63%
	2.3 m/s		+13

5 August, Tuesday. day, 26°; night, 15°; clear

6 August, wed

	743 mmHg		67%
	2.6 m/s		+13

6 August, Wednesday. day, 25°; night, 15°; partly cloudy

7 August, thu

	743 mmHg		69%
	2.5 m/s		+13

7 August, Thursday. day, 24°; night, 14°; clear

8 August, fri

	744 mmHg		68%
	2.5 m/s		+13

8 August, Friday. day, 24°; night, 14°; partly cloudy

9 August, sat

	744 mmHg		67%
	2.4 m/s		+13

9 August, Saturday. day, 25°; night, 14°; clear

10 August, sun

	743 mmHg		66%
	2.5 m/s		+13

10 August, Sunday. day, 25°; night, 15°; partly cloudy

11 August, mon

	744 mmHg		67%
	2.5 m/s		+13

11 August, Monday. day, 25°; night, 14°; clear

12 August, tue

	744 mmHg		66%
	2.6 m/s		+13

12 August, Tuesday. day, 25°; night, 14°; clear

13 August, wed

	744 mmHg		64%
	2.6 m/s		+13

13 August, Wednesday. day, 25°; night, 15°; clear

14 August, thu

	744 mmHg		64%
	2.5 m/s		+14

14 August, Thursday. day, 26°; night, 14°; clear

15 August, fri

	743 mmHg		64%
	2.5 m/s		+14

15 August, Friday. day, 26°; night, 15°; clear

16 August, sat

	744 mmHg		65%
	2.5 m/s		+13

16 August, Saturday. day, 26°; night, 15°; clear

17 August, sun

	744 mmHg		65%
	2.4 m/s		+14

17 August, Sunday. day, 25°; night, 14°; clear

18 August, mon

	743 mmHg		66%
	2.6 m/s		+13

18 August, Monday. day, 25°; night, 14°; clear

19 August, tue

	743 mmHg		66%
	2.7 m/s		+13

19 August, Tuesday. day, 24°; night, 14°; rain

20 August, wed

	742 mmHg		67%
	2.6 m/s		+13

20 August, Wednesday. day, 24°; night, 14°; rain

21 August, thu

	742 mmHg		70%
	2.7 m/s		+13

21 August, Thursday. day, 23°; night, 14°; rain

22 August, fri

	743 mmHg		68%
	2.6 m/s		+13

22 August, Friday. day, 23°; night, 13°; partly cloudy

23 August, sat

	743 mmHg		66%
	2.5 m/s		+13

23 August, Saturday. day, 23°; night, 13°; partly cloudy

24 August, sun

	743 mmHg		67%
	2.6 m/s		+13

24 August, Sunday. day, 23°; night, 13°; partly cloudy

25 August, mon

	743 mmHg		65%
	2.5 m/s		+13

25 August, Monday. day, 23°; night, 13°; partly cloudy

26 August, tue

	743 mmHg		66%
	2.4 m/s		+13

26 August, Tuesday. day, 23°; night, 13°; rain

27 August, wed

	743 mmHg		66%
	2.7 m/s		+13

27 August, Wednesday. day, 24°; night, 13°; partly cloudy

28 August, thu

	744 mmHg		67%
	2.5 m/s		+13

28 August, Thursday. day, 24°; night, 13°; partly cloudy

29 August, fri

	742 mmHg		70%
	2.7 m/s		+13

29 August, Friday. day, 24°; night, 14°; rain

30 August, sat

	743 mmHg		70%
	2.6 m/s		+13

30 August, Saturday. day, 23°; night, 13°; overcast

31 August, sun

	743 mmHg		69%
	2.6 m/s		+13

31 August, Sunday. day, 22°; night, 13°; rain

1 September, mon

	743 mmHg		68%
	2.6 m/s		+13

1 September, Monday. day, 22°; night, 12°; clear

2 September, tue

	743 mmHg		68%
	2.5 m/s		+13

2 September, Tuesday. day, 22°; night, 12°; partly cloudy

3 September, wed

	743 mmHg		67%
	2.4 m/s		+13

3 September, Wednesday. day, 22°; night, 13°; clear

4 September, thu

	744 mmHg		70%
	2.5 m/s		+13

4 September, Thursday. day, 22°; night, 12°; partly cloudy

5 September, fri

	744 mmHg		68%
	2.5 m/s		+13

5 September, Friday. day, 22°; night, 12°; clear

6 September, sat

	744 mmHg		70%
	2.6 m/s		+13

6 September, Saturday. day, 22°; night, 12°; clear

Average data for 10 years

Duncan August

15

sunny days

6

days with precipitation

3

cloudy days

15 sunny days; 6 days with precipitation; 3 cloudy days;

66

%

air humidity

1.5

m/s

WindS

36

mm of precipitation

(3% of annual average)

+13

°C

Water temperature

air humidity 66%; 36 millimeters of precipitation (3% of annual average); Wind southerly 1.5 Meters per second; Water temperature +13°

Weather graphs for August

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

S

S

S

S

S

S

S

S

S

SW

SW

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Vancouver
Seattle
Portland
Salem
Victoria
Vancouver
Mount Ranier National Park
Courtenay
Tofino

Cities with similar weather in August

Helsinki
Tallinn
Stockholm
Oslo
San Francisco
Palanga
Copenhagen
Looe
Klaipeda

The weather forecast for August 2025 is based on historical data from the past 10 years.

In August, the weather in Duncan is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Duncan has 15 sunny, 9 partly cloudy, 6 rainy, and 1 cloudy day in August. The rains are usually light. August as well as July is considered the most comfortable time to visit Duncan.

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