Pennsylvania weather in August 2025

The weather in Pennsylvania in August is hot. The average temperatures are between 21°C and 29°C.

You can expect about 3 to 8 days of rain in Pennsylvania during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Pennsylvania in August 2025.

If you’re planning to visit Pennsylvania in the near future, we highly recommend that you review the 14 day weather forecast for Pennsylvania before you arrive.

Temperatures

29° / 21°

Rainy Days

Snowy Days

Dry Days

Rainfall

106

Sun Hours

11.0

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
					1 31° /22°	2 31° /22°
3 31° /22°	4 31° /22°	5 32° /22°	6 32° /23°	7 30° /22°	8 31° /22°	9 32° /23°
10 31° /23°	11 32° /22°	12 32° /22°	13 30° /23°	14 29° /22°	15 28° /22°	16 28° /20°
17 29° /22°	18 29° /21°	19 30° /21°	20 30° /22°	21 29° /21°	22 29° /21°	23 29° /20°
24 29° /21°	25 31° /22°	26 31° /21°	27 32° /21°	28 30° /22°	29 27° /20°	30 30° /21°
31 28° /20°

Explore the weather in Pennsylvania in other months

Pennsylvania annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	3° / -3°	5	19	6	49 mm	Awful	Pennsylvania in January
February	5° / -2°	6	16	6	70 mm	Awful	Pennsylvania in February
March	10° / 2°	6	21	4	70 mm	Bad	Pennsylvania in March
April	17° / 8°	5	25	0	63 mm	Good	Pennsylvania in April
May	22° / 13°	6	26	0	77 mm	Good	Pennsylvania in May
June	27° / 18°	5	25	0	88 mm	Perfect	Pennsylvania in June
July	30° / 21°	6	25	0	98 mm	Good	Pennsylvania in July
August	29° / 21°	5	26	0	106 mm	Good	Pennsylvania in August
September	26° / 17°	3	27	0	69 mm	Perfect	Pennsylvania in September
October	19° / 12°	4	27	0	72 mm	Good	Pennsylvania in October
November	12° / 5°	4	25	1	51 mm	Ok	Pennsylvania in November
December	7° / 1°	5	22	3	73 mm	Bad	Pennsylvania in December