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August weather forecast in Washington

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

	753 mmHg		65%
	3.3 m/s

27 July, Sunday. day, 31°; night, 22°; partly cloudy

28 July, mon

	752 mmHg		67%
	3.4 m/s

28 July, Monday. day, 31°; night, 22°; rain

29 July, tue

	752 mmHg		70%
	3.5 m/s

29 July, Tuesday. day, 30°; night, 22°; rain

30 July, wed

	753 mmHg		65%
	3.6 m/s

30 July, Wednesday. day, 30°; night, 22°; partly cloudy

31 July, thu

	753 mmHg		67%
	3.2 m/s

31 July, Thursday. day, 30°; night, 21°; partly cloudy

1 August, fri

	753 mmHg		67%
	3 m/s

1 August, Friday. day, 31°; night, 21°; rain

2 August, sat

	753 mmHg		67%
	3.3 m/s

2 August, Saturday. day, 31°; night, 22°; clear

3 August, sun

	753 mmHg		66%
	3.4 m/s

3 August, Sunday. day, 30°; night, 22°; rain

4 August, mon

	753 mmHg		68%
	3.4 m/s

4 August, Monday. day, 31°; night, 22°; rain

5 August, tue

	753 mmHg		65%
	3.1 m/s

5 August, Tuesday. day, 31°; night, 21°; clear

6 August, wed

	753 mmHg		68%
	3.6 m/s

6 August, Wednesday. day, 30°; night, 21°; rain

7 August, thu

	753 mmHg		68%
	3.3 m/s

7 August, Thursday. day, 30°; night, 21°; rain

8 August, fri

	753 mmHg		67%
	3.4 m/s

8 August, Friday. day, 30°; night, 21°; overcast

9 August, sat

	753 mmHg		67%
	3.5 m/s

9 August, Saturday. day, 30°; night, 21°; clear

10 August, sun

	753 mmHg		67%
	3.4 m/s

10 August, Sunday. day, 30°; night, 22°; rain

11 August, mon

	752 mmHg		66%
	3.4 m/s

11 August, Monday. day, 30°; night, 21°; partly cloudy

12 August, tue

	753 mmHg		67%
	3.1 m/s

12 August, Tuesday. day, 30°; night, 21°; partly cloudy

13 August, wed

	753 mmHg		69%
	3.6 m/s

13 August, Wednesday. day, 29°; night, 21°; rain

14 August, thu

	753 mmHg		68%
	3.3 m/s

14 August, Thursday. day, 30°; night, 21°; partly cloudy

15 August, fri

	753 mmHg		71%
	3.1 m/s

15 August, Friday. day, 29°; night, 21°; partly cloudy

16 August, sat

	754 mmHg		69%
	3.3 m/s

16 August, Saturday. day, 30°; night, 21°; clear

17 August, sun

	754 mmHg		68%
	3.3 m/s

17 August, Sunday. day, 30°; night, 21°; rain

18 August, mon

	753 mmHg		69%
	3.4 m/s

18 August, Monday. day, 30°; night, 22°; rain

19 August, tue

	753 mmHg		68%
	3.1 m/s

19 August, Tuesday. day, 29°; night, 20°; partly cloudy

20 August, wed

	754 mmHg		70%
	3.2 m/s

20 August, Wednesday. day, 29°; night, 20°; partly cloudy

21 August, thu

	754 mmHg		71%
	3.4 m/s

21 August, Thursday. day, 29°; night, 20°; rain

22 August, fri

	754 mmHg		68%
	3.2 m/s

22 August, Friday. day, 29°; night, 20°; clear

23 August, sat

	754 mmHg		66%
	3.1 m/s

23 August, Saturday. day, 29°; night, 19°; clear

24 August, sun

	754 mmHg		65%
	3.2 m/s

24 August, Sunday. day, 29°; night, 19°; clear

25 August, mon

	755 mmHg		65%
	3.3 m/s

25 August, Monday. day, 29°; night, 20°; clear

26 August, tue

	754 mmHg		68%
	3.3 m/s

26 August, Tuesday. day, 29°; night, 20°; partly cloudy

27 August, wed

	754 mmHg		70%
	3.4 m/s

27 August, Wednesday. day, 29°; night, 20°; rain

28 August, thu

	753 mmHg		73%
	3.6 m/s

28 August, Thursday. day, 29°; night, 21°; rain

29 August, fri

	753 mmHg		72%
	3.4 m/s

29 August, Friday. day, 29°; night, 20°; partly cloudy

30 August, sat

	754 mmHg		70%
	3.4 m/s

30 August, Saturday. day, 29°; night, 20°; partly cloudy

31 August, sun

	754 mmHg		69%
	3.6 m/s

31 August, Sunday. day, 29°; night, 20°; overcast

1 September, mon

	754 mmHg		68%
	3.7 m/s

1 September, Monday. day, 28°; night, 20°; rain

2 September, tue

	754 mmHg		68%
	3.6 m/s

2 September, Tuesday. day, 28°; night, 19°; rain

3 September, wed

	754 mmHg		69%
	3.3 m/s

3 September, Wednesday. day, 28°; night, 19°; partly cloudy

4 September, thu

	754 mmHg		68%
	3.5 m/s

4 September, Thursday. day, 29°; night, 19°; partly cloudy

5 September, fri

	755 mmHg		66%
	3.8 m/s

5 September, Friday. day, 28°; night, 19°; rain

6 September, sat

	755 mmHg		69%
	4 m/s

6 September, Saturday. day, 28°; night, 19°; clear

Average data for 10 years

Washington August

8

sunny days

12

days with precipitation

6

cloudy days

8 sunny days; 12 days with precipitation; 6 cloudy days;

68

%

air humidity

2.2

m/s

WindS

97

mm of precipitation

(9% of annual average)

air humidity 68%; 97 millimeters of precipitation (9% of annual average); Wind southerly 2.2 Meters per second

Weather graphs for August

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

S

S

SW

SW

S

S

S

S

SW

SW

SW

S

SW

SW

S

SW

SW

S

S

S

SW

SW

S

S

S

S

S

S

S

S

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

New York
Philadelphia
Pittsburgh
Jamaica
Brooklyn
Roanoke
Atlantic City
Richmond
Raleigh

Cities with similar weather in August

Rome
Budva
Madrid
Venice
Dushanbe
Malaga
Valencia
Naples
Gudauta

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

In August, the weather in Washington is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Washington has 12 rainy, 9 partly cloudy, 8 sunny, and 2 cloudy days in August. The rains are usually heavy. August as well as January, February, March, and June is considered the most uncomfortable time to visit Washington.

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