Weather forecast Boston 21-09-2025

Weather Sunday 21 September temperature from 10 °C to 19 °C, cloud cover up to 38%, no precipitation, wind up to 4.11 m/s (gusts up to 5.28 m/s), air humidity from 34% to 70%, atmospheric pressure from 770 to 773 mm Hg, UV Index to 5 during the day. Forecast for the next days on the chart.