Boston
August
Weather in Boston for August 2026
Your guide to Boston weather in August - trends and predictions
In general, the average temperature in Boston at the beginning of August is 21.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 22.3 °C by the end of August.
Boston experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 30 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
22°/13°
Temperatures
26 km/h
Avg max wind
65 %
Avg humidity
Boston Weather August
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Temperatures trend during August in Boston
See the weather trend as well as the moving average line
August weather in Boston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Light rain shower | 19° /12° | 1.9 mm | 4 | |
| 2 Aug. |  Cloudy | 22° /13° | 0 mm | 5 | |
| 3 Aug. | Light rain shower | 23° /12° | 2.1 mm | 5 | |
| 4 Aug. |  Light drizzle | 21° /13° | 1 mm | 5 | |
| 5 Aug. | Patchy rain possible | 20° /11° | 0.1 mm | 5 | |
| 6 Aug. |  Partly cloudy | 24° /10° | 0 mm | 6 | |
| 7 Aug. | Patchy rain possible | 23° /13° | 0.1 mm | 5 | |
| 8 Aug. |  Overcast | 25° /12° | 0 mm | 6 | |
| 9 Aug. | Cloudy | 24° /11° | 0 mm | 5 | |
| 10 Aug. | Partly cloudy | 25° /12° | 0 mm | 7 | |
| 11 Aug. | Partly cloudy | 28° /15° | 0.1 mm | 7 | |
| 12 Aug. |  Sunny | 25° /17° | 0 mm | 7 | |
| 13 Aug. | Sunny | 27° /16° | 0.1 mm | 7 | |
| 14 Aug. | Cloudy | 28° /16° | 0.1 mm | 6 | |
| 15 Aug. | Sunny | 25° /15° | 0 mm | 7 | |
| 16 Aug. | Partly cloudy | 21° /13° | 0 mm | 6 | |
| 17 Aug. | Partly cloudy | 21° /12° | 0 mm | 6 | |
| 18 Aug. | Patchy rain possible | 20° /14° | 0 mm | 5 | |
| 19 Aug. | Partly cloudy | 21° /12° | 1.1 mm | 5 | |
| 20 Aug. | Patchy rain possible | 20° /13° | 0.1 mm | 5 | |
| 21 Aug. | Overcast | 19° /11° | 0 mm | 5 | |
| 22 Aug. |  Moderate or heavy rain shower | 22° /11° | 3 mm | 6 | |
| 23 Aug. | Moderate rain at times | 20° /13° | 1.8 mm | 5 | |
| 24 Aug. | Moderate or heavy rain shower | 21° /12° | 6 mm | 5 | |
| 25 Aug. | Overcast | 24° /11° | 0 mm | 6 | |
| 26 Aug. | Overcast | 24° /13° | 0.1 mm | 6 | |
| 27 Aug. | Overcast | 23° /12° | 0.2 mm | 5 | |
| 28 Aug. | Patchy rain possible | 23° /13° | 0.4 mm | 5 | |
| 29 Aug. | Partly cloudy | 21° /12° | 0.6 mm | 6 | |
| 30 Aug. | Overcast | 21° /10° | 0.9 mm | 5 | |
| 31 Aug. | Partly cloudy | 20° /12° | 0 mm | 5 | |
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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.
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Boston in August - FAQ
What are the expected maximum and minimum temperatures in Boston during August?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Boston during August?
In August, Boston can expect light to moderate rainfall, totaling 30 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Boston during August?
The average wind speed in Boston during August is 26 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 ☀️
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