Boston is starting Friday, July 31, with mostly cloudy skies and temperatures around 66°F, but the day is expected to brighten quickly. The forecast calls for a high near 79°F, with only a small chance of an afternoon shower or thunderstorm.
Friday Sun, With A Late-Day Asterisk
Clouds should give way to mostly sunny skies through midday, with temperatures reaching the mid-to-upper 70s by afternoon. A 20% chance of showers and thunderstorms arrives after 3 p.m., while northeast winds around 5 mph should keep the immediate coast a little cooler, mostly in the mid-70s.
Any activity should be spotty, and Friday night looks mostly clear after a slight early-evening shower or thunderstorm chance. Patchy fog may develop overnight, with a low near 65°F; the National Weather Service Boston/Norton office has no watches or warnings posted for the area.
Saturday And Sunday Stay Warm
Saturday, August 1, starts with patchy fog before 9 a.m., then turns mostly sunny and reaches 83°F. Sunday, August 2, should be partly sunny with a high near 84°F and south winds up to 13 mph, making it the warmest day of the weekend.
The next weather wrinkle arrives Sunday night, when showers could develop after 2 a.m. The rain chance is 40%, and skies should stay mostly cloudy with a low near 69°F.
Monday Is The Wettest Day
Monday, August 3, brings the biggest chance of unsettled weather: Showers and thunderstorms are likely, with a 70% chance of precipitation and a high near 83°F. Another round may continue Monday night, when the rain chance is 60% and the low falls to about 67°F.
The exact timing and coverage remain less certain several days out, but Friday and Saturday offer the cleanest outdoor windows while Sunday night turns questionable. Tuesday, August 4, may start with a few showers before turning mostly sunny near 79°F, followed by a warmer trend with mostly sunny skies and only limited storm chances Wednesday and Thursday. This is a substantive update to Hoodline's earlier Boston forecast, which focused on the previous week's weather pattern.
