Massachusetts weather in September 2025

The temperatures in Massachusetts in September are comfortable with low of 15°C and and high up to 24°C.

You can expect about 3 to 8 days of rain in Massachusetts during the month of September. 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 Massachusetts in September 2025.

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

Temperatures

24° / 15°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

10.0

Hrs

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

Explore the weather in Massachusetts in other months

Massachusetts annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	1° / -5°	6	15	10	119 mm	Awful	Massachusetts in January
February	2° / -4°	6	12	10	131 mm	Awful	Massachusetts in February
March	7° / 0°	7	15	8	149 mm	Awful	Massachusetts in March
April	13° / 5°	8	20	2	133 mm	Awful	Massachusetts in April
May	20° / 10°	7	24	0	100 mm	Ok	Massachusetts in May
June	24° / 15°	7	23	0	120 mm	Good	Massachusetts in June
July	28° / 19°	7	24	0	119 mm	Good	Massachusetts in July
August	28° / 19°	4	27	0	99 mm	Perfect	Massachusetts in August
September	24° / 15°	4	26	0	79 mm	Perfect	Massachusetts in September
October	17° / 10°	6	25	0	134 mm	Good	Massachusetts in October
November	10° / 4°	6	22	2	111 mm	Bad	Massachusetts in November
December	5° / -1°	7	17	7	143 mm	Awful	Massachusetts in December