NWS, American, European side by side around Dorchester and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
Dorchester, MA is at its warmest in Jul (average highs near 83°F) and coldest in Feb (lows around 26°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for Dorchester right now, and see exactly where they disagree.
Dorchester climate by month
average daytime high and overnight low across a typical year
Jan
40°
29°
Feb
42°
26°
Mar
47°
33°
Apr
56°
41°
May
67°
50°
Jun
75°
59°
Jul
83°
68°
Aug
78°
63°
Sep
72°
59°
Oct
64°
49°
Nov
51°
37°
Dec
43°
31°
Common questions
What's the weather in Dorchester today?
On this page we show what NWS, American, European each forecast for Dorchester 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 Dorchester today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Dorchester 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 Dorchester?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Dorchester forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Dorchester?
Jul is typically the warmest month in Dorchester, with average highs around 83°F.
How cold does Dorchester get?
The coldest month in Dorchester is Feb, when overnight lows average about 26°F.
How much rain does Dorchester get?
Dorchester sees roughly 51 in of precipitation a year, with Jan usually the wettest month.
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.