The rainy and cool conditions in Boston today may disrupt outdoor activities, with a 75% chance of precipitation and intermittent showers expected. The combination of overcast skies, high humidity, and wind speeds of nearly 29 km/h (18 mph) will make it feel colder than the forecasted high of 17°C (63°F). Starting tomorrow, temperatures are set to plummet significantly, with highs dropping to -7°C (19°F) and lows reaching -12°C (10°F). This sharp cold front could pose risks for those unprepared for freezing conditions, particularly vulnerable populations such as the elderly and those without adequate heating.