5-day weather forecast Boston 17-08-2026
Weather forecast Boston Monday, August 17 17.08.2026: patchy rain possible, temperature from 18 °C to 28 °C.
Precipitation probability 73%. Wind up to 3.89 m/s (gusts 6.72 m/s). Air humidity 55–99%, atmospheric pressure 756–759 mm Hg, UV index up to 6.8.
5 days at a glance — tap a day to open it
Sunrise 05:53
Sunset 19:42
Sunset 19:42
Waxing Crescent27% illuminated
Moonrise 11:35 · Moonset 21:51
Moonrise 11:35 · Moonset 21:51
Chart
TableForecast from 18 °C to 28 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
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.