7-day weather forecast for Boston
7-day weather forecast for Boston: 7°C, Clear sky, Humidity 87%, Wind 6 km/h.
Boston sits at 42.4° north latitude, in the temperate zone, 9 m above sea level, in the America/New_York time zone. Over the week ahead highs range from 11° to 17° and lows from 1° to 7°, averaging 10°.
No significant rain is expected over the seven days. Today the sun rises at 07:01 and sets at 17:55: 10:54 of daylight.
| Conditions | high | low | rain | Wind | UV index | |
|---|---|---|---|---|---|---|
| Today | Partly cloudy | 15° | 1° | 0% | 11 km/h | 4 |
| Tomorrow | Overcast | 16° | 3° | 0% | 21 km/h | 4 |
| Wed, Oct 21 | Overcast | 11° | 7° | 2% | 21 km/h | 3 |
| Thu, Oct 22 | Overcast | 14° | 7° | 2% | 28 km/h | 4 |
| Fri, Oct 23 | Partly cloudy | 11° | 7° | 3% | 29 km/h | 4 |
| Sat, Oct 24 | Partly cloudy | 15° | 5° | 2% | 16 km/h | 4 |
| Sun, Oct 25 | Clear sky | 17° | 7° | 1% | 16 km/h | 4 |
Weather data by Open-Meteo (ECMWF, GFS, ICON models and national weather services). Updated every 15 minutes.
Weather in Boston month by month
The table gathers the 2016-2025 climate normals for Boston: average highs and lows, total rainfall and number of rainy days for each month of the year.
Boston has an annual mean temperature of 11°. The warmest month is July, when highs sit around 28.7°; the coldest is January, with average lows of -5°. The 33.7° gap between those two ends of the calendar is the measure of how much the year swings here.
Rainfall totals about 1,195 mm a year, spread over roughly 128 rainy days. The wettest month is October, averaging 121 mm across 10 days; the driest is August, with 76.1 mm.
| Month | Average high | Average low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | 3° | -5° | 98.9 mm | 10 |
| February | 4.9° | -4.7° | 86.6 mm | 10 |
| March | 8.3° | -1.2° | 109.8 mm | 11 |
| April | 13.3° | 3.9° | 108.7 mm | 12 |
| May | 19.3° | 9.8° | 94 mm | 12 |
| June | 25.1° | 15.3° | 79.3 mm | 11 |
| July | 28.7° | 19.2° | 114.7 mm | 12 |
| August | 27.6° | 18.4° | 76.1 mm | 11 |
| September | 23.2° | 14.8° | 107.7 mm | 10 |
| October | 17.5° | 9.1° | 121 mm | 10 |
| November | 10.6° | 2.1° | 82.6 mm | 9 |
| December | 5° | -2.9° | 115.5 mm | 10 |
When to visit Boston
For travellers who plan around the weather, May/June and August tend to be the most comfortable stretch: average highs between 19.3° and 27.6° and rainfall below the yearly average.
What to expect each month
- In January, highs sit near 3° and lows near -5°, with about 98.9 mm of rain over 10 days.
- In February, highs sit near 4.9° and lows near -4.7°, with about 86.6 mm of rain over 10 days.
- In March, highs sit near 8.3° and lows near -1.2°, with about 109.8 mm of rain over 11 days.
- In April, highs sit near 13.3° and lows near 3.9°, with about 108.7 mm of rain over 12 days.
- In May, highs sit near 19.3° and lows near 9.8°, with about 94 mm of rain over 12 days.
- In June, highs sit near 25.1° and lows near 15.3°, with about 79.3 mm of rain over 11 days.
- In July, highs sit near 28.7° and lows near 19.2°, with about 114.7 mm of rain over 12 days.
- In August, highs sit near 27.6° and lows near 18.4°, with about 76.1 mm of rain over 11 days.
- In September, highs sit near 23.2° and lows near 14.8°, with about 107.7 mm of rain over 10 days.
- In October, highs sit near 17.5° and lows near 9.1°, with about 121 mm of rain over 10 days.
- In November, highs sit near 10.6° and lows near 2.1°, with about 82.6 mm of rain over 9 days.
- In December, highs sit near 5° and lows near -2.9°, with about 115.5 mm of rain over 10 days.
Recorded extremes
Across 2016-2025, the thermometer reached 38.8° at the top of the series and fell to -26.4° at the bottom. These are observed values, not averages: they show what the city has actually faced.
Normals computed from the ERA5 reanalysis (Copernicus/ECMWF), 2016-2025 series.
FAQ
What is the temperature in Boston right now?
It is 7°C in Boston right now, with clear sky. It feels like 4°C.
Will it rain in Boston today?
The peak chance of rain today is 0%, with about 0 mm expected.
What will the weather be tomorrow in Boston?
Tomorrow the high is 16° and the low 3°, with overcast.
Where does the data come from and how often is it updated?
Data comes from the ECMWF, GFS and ICON models and national weather services via Open-Meteo, updated every 15 minutes.
What is the warmest month in Boston?
The warmest month is July, with average highs of 28.7° and lows of 19.2°.
Does it rain a lot in Boston?
The city gets about 1,195 mm a year over 128 rainy days. The wettest month is October, with 121 mm.
When is the best time to visit Boston?
On weather grounds, May/June and August combine the most agreeable temperatures with below-average rainfall.