A band of rain is set to move across the Boston area this afternoon, bringing a noticeable drop in temperature as the city steps into the cooler weather of early September. Meteorologists indicate that the showers will be brief but enough to signal the shift from summer heat to a more temperate autumn climate.
Monday, September 21, will see a clear sky pattern across the region, offering residents a brief respite from the rain. Temperatures are expected to remain lower than the preceding weekend, reinforcing the transition toward fall conditions.
The change in season will be marked on Tuesday, September 22, by the autumnal equinox, the point when day and night are roughly equal in length. While the day is expected to stay mostly clear, the cooler air will persist, setting the tone for the rest of the week.
Mid‑week forecasts suggest continued cooler temperatures, with the potential for additional precipitation later in the week. Friday, September 25, and Saturday, September 26, both carry a chance of rain or showers, rounding out a pattern of intermittent rain through the end of the week as Boston fully embraces the autumn season.