Boston, MA 14-Day Forecast
Massachusetts, United States 🇺🇸
75°
Partly Cloudy right now
Today: high 82°, low 59°
Updated 7 hours ago
Boston weather for the next 14 days
Monday, August 17
Patchy rain nearby High 70° Low 63°Precipitation
88%
· 0.26 in
Max wind
10 mph
Humidity
89%
UV index
2 - Low
Sunrise / sunset
05:53 AM / 07:42 PM
Tuesday, August 18
Partly Cloudy High 79° Low 61°Precipitation
13%
· 0.0 in
Max wind
8 mph
Humidity
74%
UV index
6 - Moderate
Sunrise / sunset
05:54 AM / 07:41 PM
Wednesday, August 19
Sunny High 88° Low 62°Precipitation
17%
· 0.01 in
Max wind
13 mph
Humidity
67%
UV index
8 - High
Sunrise / sunset
05:55 AM / 07:39 PM
Thursday, August 20
Patchy rain nearby High 82° Low 68°Precipitation
72%
· 0.22 in
Max wind
7 mph
Humidity
78%
UV index
4 - Moderate
Sunrise / sunset
05:56 AM / 07:38 PM
Friday, August 21
Sunny High 81° Low 65°Precipitation
4%
· 0.0 in
Max wind
8 mph
Humidity
59%
UV index
7 - High
Sunrise / sunset
05:58 AM / 07:36 PM
Saturday, August 22
Patchy rain nearby High 79° Low 64°Precipitation
44%
· 0.03 in
Max wind
7 mph
Humidity
74%
UV index
6 - High
Sunrise / sunset
05:59 AM / 07:35 PM
Sunday, August 23
Light rain shower High 76° Low 66°Precipitation
93%
· 1.36 in
Max wind
8 mph
Humidity
95%
UV index
5 - Moderate
Sunrise / sunset
06:00 AM / 07:33 PM
Monday, August 24
Mist High 73° Low 64°Precipitation
56%
· 0.03 in
Max wind
6 mph
Humidity
87%
UV index
6 - High
Sunrise / sunset
06:01 AM / 07:32 PM
Tuesday, August 25
Sunny High 90° Low 65°Precipitation
36%
· 0.01 in
Max wind
10 mph
Humidity
69%
UV index
8 - Very High
Sunrise / sunset
06:02 AM / 07:30 PM
Wednesday, August 26
Partly Cloudy High 78° Low 65°Precipitation
5%
· 0.0 in
Max wind
7 mph
Humidity
62%
UV index
7 - High
Sunrise / sunset
06:03 AM / 07:28 PM
Thursday, August 27
Sunny High 77° Low 63°Precipitation
6%
· 0.0 in
Max wind
8 mph
Humidity
66%
UV index
6 - High
Sunrise / sunset
06:04 AM / 07:27 PM
Friday, August 28
Sunny High 77° Low 60°Precipitation
7%
· 0.0 in
Max wind
13 mph
Humidity
61%
UV index
7 - High
Sunrise / sunset
06:05 AM / 07:25 PM
Saturday, August 29
Sunny High 73° Low 53°Precipitation
2%
· 0.0 in
Max wind
11 mph
Humidity
50%
UV index
6 - High
Sunrise / sunset
06:06 AM / 07:23 PM
Boston 14-day outlook: the story
The warmest day of Boston's 14-day outlook is Tuesday, August 25 with a high near 90°F (32°C); the coolest night comes Saturday, August 29, dipping to 53°F (12°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 80°F (27°C), right in line with the typical August high of 82°F (28°C).
Precipitation is most likely on Sunday 16, Monday 17, Thursday 20, Sunday 23 and beyond; the wettest day looks like Sunday, August 23 with about 1.36 in (34.7 mm) expected. For the weekend, expect Sunday 82°F (28°C) and sunny / Saturday 79°F (26°C) and patchy rain nearby.
For typical conditions month by month, see the Boston climate & average temperatures guide.
Boston forecast questions
Will it rain in Boston this week?
The forecast currently shows meaningful precipitation chances on 5 of the next 14 days, peaking around Sunday, August 23.
What will be the warmest day in Boston over the next 14 days?
Tuesday, August 25, with a forecast high near 90°F (32°C).
How accurate is a 14-day forecast for Boston?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Boston by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 37° | 23° | 10 | 4.2 in | 6.0 h/day | 67% |
| February | 40° | 22° | 10 | 3.5 in | 6.7 h/day | 69% |
| March | 46° | 29° | 12 | 4.3 in | 7.9 h/day | 67% |
| April | 56° | 39° | 12 | 4.2 in | 8.4 h/day | 69% |
| May | 67° | 49° | 11 | 3.1 in | 10.2 h/day | 70% |
| June | 77° | 59° | 11 | 3.4 in | 11.2 h/day | 71% |
| July | 83° | 66° | 12 | 4.3 in | 11.4 h/day | 72% |
| August | 82° | 65° | 11 | 2.9 in | 10.9 h/day | 73% |
| September | 74° | 59° | 9 | 4.3 in | 8.9 h/day | 75% |
| October | 63° | 48° | 10 | 4.7 in | 7.5 h/day | 76% |
| November | 51° | 36° | 8 | 3.3 in | 6.6 h/day | 71% |
| December | 42° | 28° | 11 | 4.7 in | 5.7 h/day | 73% |
14-day forecasts nearby