5-day weather forecast Boston 15-08-2026
Weather forecast Boston tomorrow 15.08.2026: sunny, temperature from 15 °C to 26 °C.
Precipitation probability 5%. Wind up to 3.89 m/s (gusts 6.39 m/s). Air humidity 32–65%, atmospheric pressure 765–767 mm Hg, UV index up to 7.1.
5 days at a glance — tap a day to open it
Sunrise 05:51
Sunset 19:45
Sunset 19:45
Waxing Crescent11% illuminated
Moonrise 09:06 · Moonset 21:03
Moonrise 09:06 · Moonset 21:03
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 20 °C | 2% | 0% | 49% | 765 mm Hg | N 358° 3.89 (6.39) m/s | 0 |
| 01:00 | Clear | 18 °C | 2% | 0% | 54% | 765 mm Hg | N 11° 2.5 (4.39) m/s | 0 |
| 02:00 | Clear | 17 °C | 3% | 2% | 58% | 765 mm Hg | NNW 327° 1.81 (3.36) m/s | 0 |
| 03:00 | Clear | 17 °C | 3% | 2% | 60% | 765 mm Hg | NNW 329° 1.81 (3.42) m/s | 0 |
| 04:00 | Clear | 16 °C | 4% | 3% | 61% | 765 mm Hg | NW 313° 1.61 (3.06) m/s | 0 |
| 05:00 | Clear | 15 °C | 4% | 3% | 63% | 765 mm Hg | NW 313° 1.69 (3.22) m/s | 0 |
| 06:00 |  Sunny | 15 °C | 5% | 3% | 65% | 766 mm Hg | NW 314° 1.89 (3.64) m/s | 0 |
| 07:00 | Sunny | 16 °C | 4% | 3% | 61% | 766 mm Hg | NW 319° 2.31 (3.53) m/s | 0.3 |
| 08:00 | Sunny | 19 °C | 2% | 2% | 51% | 767 mm Hg | NNW 336° 3 (3.61) m/s | 1 |
| 09:00 | Sunny | 21 °C | 1% | 0% | 42% | 767 mm Hg | NNW 348° 3.5 (4.03) m/s | 2.4 |
| 10:00 | Sunny | 23 °C | 1% | 0% | 37% | 766 mm Hg | N 355° 3.31 (3.81) m/s | 4.1 |
| 11:00 | Sunny | 24 °C | 1% | 0% | 34% | 766 mm Hg | N 9° 2.61 (3) m/s | 5.8 |
| 12:00 | Sunny | 25 °C | 1% | 0% | 32% | 766 mm Hg | NNE 28° 2.31 (2.64) m/s | 6.9 |
| 13:00 | Sunny | 25 °C | 1% | 3% | 32% | 766 mm Hg | NE 54° 2.31 (2.64) m/s | 7.1 |
| 14:00 | Sunny | 26 °C | 1% | 7% | 32% | 766 mm Hg | ENE 66° 2.61 (3) m/s | 6.5 |
| 15:00 | Sunny | 25 °C | 1% | 7% | 33% | 766 mm Hg | ENE 78° 2.81 (3.22) m/s | 5 |
| 16:00 | Sunny | 25 °C | 1% | 8% | 34% | 766 mm Hg | E 84° 3.11 (3.58) m/s | 3.2 |
| 17:00 | Sunny | 25 °C | 1% | 8% | 36% | 765 mm Hg | E 97° 3 (3.44) m/s | 1.6 |
| 18:00 | Sunny | 24 °C | 1% | 9% | 40% | 765 mm Hg | ESE 115° 3.19 (4) m/s | 0.6 |
| 19:00 | Sunny | 22 °C | 2% | 10% | 47% | 766 mm Hg | SE 135° 3.31 (4.75) m/s | 0.1 |
| 20:00 | Clear | 20 °C | 3% | 9% | 54% | 766 mm Hg | SSE 157° 3 (5.19) m/s | 0 |
| 21:00 | Clear | 19 °C | 3% | 10% | 57% | 766 mm Hg | S 170° 2.89 (5.39) m/s | 0 |
| 22:00 | Clear | 18 °C | 4% | 11% | 60% | 766 mm Hg | S 186° 2.89 (5.44) m/s | 0 |
| 23:00 | Clear | 18 °C | 4% | 7% | 64% | 766 mm Hg | SSW 202° 2.69 (5.06) m/s | 0 |
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Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.