5-day weather forecast Boston 03-09-2026

Weather forecast Boston today 03.09.2026: light rain, temperature from 16 °C to 24 °C.

Precipitation probability 87%. Wind up to 4.39 m/s (gusts 12.72 m/s). Air humidity 88–98%, atmospheric pressure 758–765 mm Hg, UV index up to 6.3.

Sunrise 06:11
Sunset 19:15
Last Quarter50% illuminated
Moonrise 22:10 · Moonset 13:16
Chart
Table
Thu, Sep 3, 2026

Forecast from 16 °C to 24 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)171716171818181818192022222224242424232222212120
Precipitation (mm/hr)000000.711.162.322.472.482.482.485.410.030.361.520.630.40.5200000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)100731001001001001001001001001001001009393838865100100815100100
Rain chance (%)292435303474778484848382874050736145633120214243

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.613.393.813.313.614.194.394.394.394.19443.693.112.312.52.692.520.611.51.110.51.19
Wind gust (m/s)5.818.539.8110.0311.0312.5312.7212.511.8911.641110.819.037.225.395.115.425.424.420.721.51.220.531.39
Wind direction (°)SSE 161°S 174°SSE 165°S 170°S 173°S 179°S 183°S 186°S 190°SSW 192°SSW 195°SSW 204°SSW 212°SW 219°W 260°W 270°W 264°W 277°WNW 289°WNW 298°ENE 76°ESE 122°ENE 75°NNE 31°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)899091908994949695949390889788908988919295979798

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)765764764763762762761761761761761761760760759758758758758758758758758758

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.10.20.91.63.96.35.641.50.50.200000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)7.77.16.25.65.14.84.64.14.143.94.34.94.64.74.64.34.45.58.41315.719.219.8
PM10 (µg/m³)98.47.56.96.46.25.95.25.14.74.54.95.554.84.74.54.65.88.713.215.819.320.1
Ozone (O₃) (µg/m³)3640444648515559636567738810812112612511696684426136
NO₂ (µg/m³)21.917.112.910.28.27.17.188.89.510.2108.15.43.621.35.116.632.646.859.269.873
SO₂ (µg/m³)1.11.11.1110.90.80.70.70.70.80.911.11.110.90.80.91.11.31.51.61.6
CO (µg/m³)182169157145134128131138145149151152150147147151158174203241277315351361
Thu, Sep 3, 2026

Frequently asked questions about the 5-day weather in Boston

What will the weather be like in Boston over the next 5 days?

Over the next 5 days in Boston the temperature is expected to range from about 14 to 28 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Boston?

The chance of rain in Boston over the next 5 days reaches 87%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Boston?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Boston will be the warmest and which the coolest?

Over the next 5 days the temperature in Boston ranges from about 14 to 28 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Boston over the next 5 days?

Over the next 5 days the wind in Boston picks up to 7 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Boston is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 87%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Boston?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Boston on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.