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Jamaica Plain weather

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Jamaica Plain weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Jamaica Plain weather in numbers

measured normals and 10 years of recorded weather

Jamaica Plain swings 62°F across the year, from 83°F highs in July to 21°F lows in February, and November is usually the wettest month in a year that brings about 51 in of precipitation. Over 10 years of recorded weather it averages 85 days a year at 77°F or above, 28 of them at 86°F or above, 106 frost nights, and rain on 128 days.

Warmest month
July
83°F average high
Coldest month
February
21°F average low
Wettest month
November
51 in a year
Comfortable
4 months
May, June, September and October
Residents
37,000
share this forecast
Most accurate here
American
86/100 CheckWeather Score
Warm days
85 days
a year at 77°F or above
Frost nights
106 nights
a year below 32°F
Rain days
128 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Jamaica Plain’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around Jamaica Plain and nearby towns.Live rain radar →
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Jamaica Plain hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Jamaica Plain 10-day forecast, out to 14 days

where the models agree, and where they split

Jamaica Plain, Massachusetts (MA) is at its warmest in Jul (average highs near 83°F) and coldest in Feb (lows around 21°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for Jamaica Plain right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Jamaica Plain climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
35°
22°
Feb
39°
21°
Mar
45°
29°
Apr
57°
38°
May
68°
48°
Jun
77°
57°
Jul
83°
65°
Aug
82°
64°
Sep
73°
57°
Oct
62°
44°
Nov
50°
34°
Dec
40°
26°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Jamaica Plain has changed since 1995

Jamaica Plain sits in the same roughly 50 km square of NASA's reanalysis as Boston. That square ran 1.6°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Boston page.

Which forecast is most accurate in Jamaica Plain?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
86
/100rank #1
85±1.5°F94±1.8 mph8290% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
85
/100rank #2
92±0.8°F94±1.8 mph7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Jamaica Plain today?
On this page we show what NWS, American, European each forecast for Jamaica Plain today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Jamaica Plain today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Jamaica Plain and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Jamaica Plain?
Over the last 30 days, the American model has been the most accurate for Jamaica Plain (CheckWeather Score 86/100), ahead of the European at 85. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Jamaica Plain?
July is typically the warmest month in Jamaica Plain, with average highs around 83°F.
How cold does Jamaica Plain get?
The coldest month in Jamaica Plain is February, when overnight lows average about 21°F.
How much rain does Jamaica Plain get?
Jamaica Plain sees roughly 51 in of precipitation a year, with November usually the wettest month.

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