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August weather forecast in Chambersburg

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

	737 mmHg		66%
	3.4 m/s

27 July, Sunday. day, 29°; night, 20°; partly cloudy

28 July, mon

	736 mmHg		70%
	3.4 m/s

28 July, Monday. day, 29°; night, 20°; rain

29 July, tue

	736 mmHg		70%
	3.4 m/s

29 July, Tuesday. day, 28°; night, 20°; overcast

30 July, wed

	737 mmHg		67%
	3.4 m/s

30 July, Wednesday. day, 29°; night, 19°; partly cloudy

31 July, thu

	737 mmHg		68%
	3 m/s

31 July, Thursday. day, 29°; night, 19°; rain

1 August, fri

	737 mmHg		68%
	2.8 m/s

1 August, Friday. day, 29°; night, 20°; rain

2 August, sat

	737 mmHg		66%
	3.2 m/s

2 August, Saturday. day, 29°; night, 20°; clear

3 August, sun

	737 mmHg		69%
	3.2 m/s

3 August, Sunday. day, 29°; night, 20°; rain

4 August, mon

	737 mmHg		70%
	3.1 m/s

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

5 August, tue

	737 mmHg		66%
	3.2 m/s

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

6 August, wed

	737 mmHg		68%
	3.3 m/s

6 August, Wednesday. day, 28°; night, 19°; rain

7 August, thu

	737 mmHg		69%
	3.2 m/s

7 August, Thursday. day, 28°; night, 19°; overcast

8 August, fri

	737 mmHg		68%
	3.3 m/s

8 August, Friday. day, 28°; night, 19°; overcast

9 August, sat

	737 mmHg		67%
	3.3 m/s

9 August, Saturday. day, 29°; night, 19°; rain

10 August, sun

	736 mmHg		68%
	3.3 m/s

10 August, Sunday. day, 28°; night, 19°; partly cloudy

11 August, mon

	736 mmHg		67%
	3.4 m/s

11 August, Monday. day, 28°; night, 19°; partly cloudy

12 August, tue

	737 mmHg		68%
	3.1 m/s

12 August, Tuesday. day, 28°; night, 19°; partly cloudy

13 August, wed

	737 mmHg		70%
	3.2 m/s

13 August, Wednesday. day, 28°; night, 19°; rain

14 August, thu

	737 mmHg		69%
	3.3 m/s

14 August, Thursday. day, 28°; night, 19°; rain

15 August, fri

	737 mmHg		71%
	3 m/s

15 August, Friday. day, 28°; night, 19°; rain

16 August, sat

	738 mmHg		70%
	3.3 m/s

16 August, Saturday. day, 28°; night, 19°; rain

17 August, sun

	738 mmHg		68%
	3.1 m/s

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

18 August, mon

	737 mmHg		68%
	3.3 m/s

18 August, Monday. day, 28°; night, 19°; rain

19 August, tue

	737 mmHg		68%
	3.3 m/s

19 August, Tuesday. day, 27°; night, 18°; partly cloudy

20 August, wed

	738 mmHg		71%
	3.2 m/s

20 August, Wednesday. day, 27°; night, 18°; partly cloudy

21 August, thu

	738 mmHg		72%
	3.3 m/s

21 August, Thursday. day, 27°; night, 18°; rain

22 August, fri

	738 mmHg		69%
	3.3 m/s

22 August, Friday. day, 27°; night, 18°; clear

23 August, sat

	738 mmHg		69%
	3 m/s

23 August, Saturday. day, 27°; night, 18°; clear

24 August, sun

	738 mmHg		67%
	3.2 m/s

24 August, Sunday. day, 27°; night, 17°; clear

25 August, mon

	738 mmHg		66%
	3.3 m/s

25 August, Monday. day, 28°; night, 18°; clear

26 August, tue

	738 mmHg		67%
	3.3 m/s

26 August, Tuesday. day, 28°; night, 18°; clear

27 August, wed

	738 mmHg		71%
	3.1 m/s

27 August, Wednesday. day, 28°; night, 19°; overcast

28 August, thu

	737 mmHg		73%
	3.3 m/s

28 August, Thursday. day, 27°; night, 19°; rain

29 August, fri

	737 mmHg		74%
	3.4 m/s

29 August, Friday. day, 27°; night, 19°; partly cloudy

30 August, sat

	738 mmHg		70%
	3.2 m/s

30 August, Saturday. day, 27°; night, 18°; clear

31 August, sun

	738 mmHg		70%
	3.4 m/s

31 August, Sunday. day, 27°; night, 18°; overcast

1 September, mon

	739 mmHg		68%
	3.3 m/s

1 September, Monday. day, 26°; night, 18°; rain

2 September, tue

	738 mmHg		70%
	3.3 m/s

2 September, Tuesday. day, 27°; night, 17°; rain

3 September, wed

	738 mmHg		70%
	3.3 m/s

3 September, Wednesday. day, 27°; night, 17°; partly cloudy

4 September, thu

	738 mmHg		68%
	3.4 m/s

4 September, Thursday. day, 27°; night, 18°; clear

5 September, fri

	739 mmHg		68%
	3.4 m/s

5 September, Friday. day, 26°; night, 17°; clear

6 September, sat

	739 mmHg		69%
	3.5 m/s

6 September, Saturday. day, 26°; night, 17°; clear

Average data for 10 years

Chambersburg August

9

sunny days

11

days with precipitation

6

cloudy days

9 sunny days; 11 days with precipitation; 6 cloudy days;

69

%

air humidity

2.09

m/s

WindSW

81

mm of precipitation

(8% of annual average)

air humidity 69%; 81 millimeters of precipitation (8% of annual average); Wind south-westerly 2.09 Meters per second

Weather graphs for August

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

SW

SW

SW

SW

SW

SW

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

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
Washington
Philadelphia
Pittsburgh
Jamaica
Brooklyn
Burlington
Roanoke
Buffalo

Cities with similar weather in August

Kemer
Podgorica
Verona
Chicago
Victoria
Casablanca
Marbella
Tsandrypsh
Cannes

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

In August, the weather in Chambersburg is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Chambersburg has 11 rainy, 9 sunny, 7 partly cloudy, and 4 cloudy days in August. The rains are usually heavy.

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