Boston
August
Weather in Boston for August 2025
Your guide to Boston weather in August - trends and predictions
In general, the average temperature in Boston at the beginning of August is 26.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.7 °F by the end of August.
Expect significant rainfall in Boston during August, with an average of 16 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
15
Dry days
16
Rainy days
0
Snow days
25°/17°
Temperatures
16 km/h
Avg max wind
75 %
Avg humidity
Boston in August average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2  27° | 3 29° | ||||
| 4  26° | 5  29° | 6  24° | 7 22° | 8 25° | 9 26° | 10 29° |
| 11 28° | 12 26° | 13 28° | 14 27° | 15 23° | 16 24° | 17 26° |
| 18 27° | 19 24° | 20  24° | 21 24° | 22 23° | 23 25° | 24 27° |
| 25 24° | 26 27° | 27 25° | 28  26° | 29  22° | 30 25° | 31 24° |
You can click on date
Access Boston weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during August in Boston
See the weather trend as well as the moving average line
August weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Cloudy | 29° /18° | 0 mm | 7 | |
| Aug. 2 | Partly cloudy | 27° /17° | 4 mm | 7 | |
| Aug. 3 | Cloudy | 29° /17° | 3.4 mm | 7 | |
| Aug. 4 | Moderate or heavy rain shower | 26° /19° | 13.4 mm | 6 | |
| Aug. 5 | Patchy rain possible | 29° /18° | 10.3 mm | 7 | |
| Aug. 6 | Overcast | 24° /16° | 6.2 mm | 6 | |
| Aug. 7 | Moderate or heavy rain shower | 22° /16° | 5.6 mm | 5 | |
| Aug. 8 | Moderate or heavy rain shower | 25° /17° | 5.6 mm | 6 | |
| Aug. 9 | Patchy rain possible | 26° /17° | 2.5 mm | 6 | |
| Aug. 10 | Patchy rain possible | 29° /19° | 8.5 mm | 6 | |
| Aug. 11 | Overcast | 28° /17° | 13.9 mm | 7 | |
| Aug. 12 | Partly cloudy | 26° /16° | 0 mm | 6 | |
| Aug. 13 | Moderate or heavy rain shower | 28° /17° | 4.3 mm | 7 | |
| Aug. 14 | Cloudy | 27° /17° | 0.1 mm | 7 | |
| Aug. 15 | Moderate or heavy rain shower | 23° /17° | 17.5 mm | 6 | |
| Aug. 16 | Patchy rain possible | 24° /17° | 0.1 mm | 6 | |
| Aug. 17 | Overcast | 26° /17° | 0 mm | 6 | |
| Aug. 18 | Moderate or heavy rain shower | 27° /18° | 5.6 mm | 7 | |
| Aug. 19 | Patchy rain possible | 24° /16° | 5.4 mm | 5 | |
| Aug. 20 | Sunny | 24° /15° | 0.7 mm | 6 | |
| Aug. 21 | Patchy rain possible | 24° /15° | 2.9 mm | 5 | |
| Aug. 22 | Overcast | 23° /14° | 0.6 mm | 6 | |
| Aug. 23 | Sunny | 25° /13° | 0 mm | 7 | |
| Aug. 24 | Overcast | 27° /15° | 0 mm | 6 | |
| Aug. 25 | Moderate or heavy rain shower | 24° /16° | 14.1 mm | 6 | |
| Aug. 26 | Light rain shower | 27° /17° | 18.3 mm | 6 | |
| Aug. 27 | Overcast | 25° /16° | 0 mm | 6 | |
| Aug. 28 | Fog | 26° /16° | 0.3 mm | 6 | |
| Aug. 29 | Moderate rain | 22° /16° | 3.2 mm | 5 | |
| Aug. 30 | Light rain shower | 25° /15° | 3.1 mm | 6 | |
| Aug. 31 | Sunny | 24° /14° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Boston in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Boston forecast closer to your planned date for the most up-to-date weather information.
Boston in August - FAQ
What are the expected maximum and minimum temperatures in Boston during August?
During August, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Boston during August?
Significant rainfall exceeding 192.7 mm is expected in Boston during August, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Boston during August?
The average wind speed in Boston during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Boston
Explore the daily rainfall trends and prepare for Bostons August weather 💧
UV exposure in Boston during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Quick links
You are here
Where is Boston?Get accurate weather forecasts for Boston, located at latitude 42.358 and longitude -71.06. Stay updated with localized weather information tailored for Boston.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.