Boston weather

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The weather guide for Boston, Massachusetts shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Boston?

The hottest time of year in Boston is normally July. Expect maximum daytime temperatures to reach 28°C with moderate heat and humidity.

Which month has the most rain in Boston?

In terms of rainfall, November is usually the wettest month in Boston with 111mm on average. There are normally 11 days in November with some rain.

When is it sunniest in Boston?

The sunniest time of year in Boston is normally July with bright sunshine on average for 63% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Boston?

The sea is usually at its warmest in Boston in August when the water temperature reaches 18°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Boston weather with the USA

Below the Boston weather chart shows average maximum daytime temperature for Boston, Massachusetts, USA and the USA (Washington).

Maximum daytime temperature (°C)

Boston, Massachusetts, USA
USA (Washington)
Jan
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Aug
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Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Boston, Massachusetts hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
1.2%
1.7%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Boston, Massachusetts tropical storm risk chart above shows the hurricane season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

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Where's warm in Massachusetts right now?

Below are the temperatures expected today at popular destinations in Massachusetts. Select a destination to compare today's forecast with average weather conditions.

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