Boston weather
Loading live data…Latest for Boston: European (ECMWF): 13° Partly cloudy · American (NOAA GFS): 14° Clear · German (DWD ICON): 16° Overcast.
The weather map: all three models at once
European, American, German side by side around Boston and nearby towns.Live rain radar →Hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
10-day forecast, out to 14 days
where the models agree, and where they splitHeading to Boston? Boston, USA, sits at 42.4°N in a temperate climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Boston right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.
Best time to visit Boston
The most comfortable time to visit Boston is usually May, June, September and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest December rain is behind you.
Boston weather by month
what to expect in Boston through the year, 1991-2020 normals, Boston Logan Intl AP (WMO)Here is Boston's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Boston by season.
Boston compared with Toronto
30-year averages: daytime highs month by month, rain and sunlightWarmer through the year
average daytime high: Boston 15°C, Toronto 14°C
Rain over a year
Boston 1,107 mm, Toronto 924 mm
Sunlight vs a clear sky
solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)
On 30-year averages Boston runs 1°C warmer than Toronto, with every month between ±0°C and +3°C. Over a year it gets 20% more rain than Toronto.
Month by month in numbers
| Month | Boston | Toronto | Difference | Sunlight, Boston | Sunlight, Toronto |
|---|---|---|---|---|---|
| January | 3°C | 0°C | +3°C | 69% | 56% |
| February | 4°C | 1°C | +3°C | 70% | 57% |
| March | 8°C | 5°C | +3°C | 69% | 64% |
| April | 14°C | 12°C | +2°C | 69% | 67% |
| May | 19°C | 19°C | ±0°C | 68% | 72% |
| June | 24°C | 24°C | ±0°C | 71% | 76% |
| July | 28°C | 27°C | +1°C | 78% | 79% |
| August | 27°C | 26°C | +1°C | 78% | 79% |
| September | 23°C | 22°C | +1°C | 77% | 76% |
| October | 17°C | 15°C | +2°C | 68% | 63% |
| November | 11°C | 8°C | +3°C | 70% | 60% |
| December | 6°C | 3°C | +3°C | 66% | 54% |
Daytime highs and lows on this page are 1991-2020 averages. Boston: station normals from Boston Logan Intl AP (WMO), rain included. Toronto: station normals from Toronto City (WMO); rain is the CHELSA 1981-2010 climatology on a 1 km grid. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Toronto stands in for Canada here; other cities have their own climate tables.