5-day weather forecast Boston 18-04-2026
Weather forecast Boston Saturday, April 18 18.04.2026: partly cloudy, temperature from 9 °C to 14 °C.
Precipitation probability 84%. Wind up to 4.61 m/s (gusts 5.28 m/s). Air humidity 67–90%, atmospheric pressure 764–767 mm Hg, UV index up to 6.2.
Sunrise 05:59
Sunset 19:30
Sunset 19:30
Waxing Crescent1% illuminated
Moonrise 06:12 · Moonset 21:32
Moonrise 06:12 · Moonset 21:32
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Table
Sat, Apr 18, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Cloudy | 10 °C | 0% | 77% | 89% | 764 mm Hg | ENE 61° 2.69 (4.03) m/s | 0 |
| 01:00 |  Partly cloudy | 10 °C | 0% | 54% | 88% | 764 mm Hg | ENE 59° 2.69 (3.97) m/s | 0 |
| 02:00 | Partly cloudy | 10 °C | 0% | 41% | 88% | 764 mm Hg | NE 56° 2.5 (3.72) m/s | 0 |
| 03:00 | Partly cloudy | 9 °C | 0% | 33% | 88% | 764 mm Hg | ENE 57° 2.39 (3.69) m/s | 0 |
| 04:00 | Partly cloudy | 9 °C | 0% | 33% | 88% | 765 mm Hg | ENE 57° 2.19 (3.53) m/s | 0 |
| 05:00 | Partly cloudy | 9 °C | 0% | 44% | 89% | 765 mm Hg | ENE 65° 2.31 (3.75) m/s | 0 |
| 06:00 |  Partly cloudy | 9 °C | 0% | 50% | 90% | 765 mm Hg | ENE 71° 2.5 (4.08) m/s | 0 |
| 07:00 | Partly cloudy | 10 °C | 0% | 55% | 88% | 766 mm Hg | ENE 66° 2.5 (3.78) m/s | 0.2 |
| 08:00 | Partly cloudy | 11 °C | 0% | 53% | 83% | 766 mm Hg | ENE 73° 2.81 (3.75) m/s | 0.9 |
| 09:00 |  Cloudy | 12 °C | 0% | 63% | 78% | 766 mm Hg | ENE 78° 3.31 (4.06) m/s | 2 |
| 10:00 | Cloudy | 13 °C | 0% | 76% | 73% | 766 mm Hg | E 83° 3.69 (4.25) m/s | 3.7 |
| 11:00 | Cloudy | 13 °C | 0% | 84% | 70% | 767 mm Hg | E 80° 3.81 (4.36) m/s | 5.1 |
| 12:00 | Cloudy | 14 °C | 0% | 84% | 69% | 766 mm Hg | E 88° 4.11 (4.72) m/s | 5.9 |
| 13:00 | Cloudy | 14 °C | 0% | 81% | 67% | 766 mm Hg | E 89° 4.11 (4.72) m/s | 6.2 |
| 14:00 | Cloudy | 14 °C | 0% | 80% | 67% | 766 mm Hg | E 93° 4.61 (5.28) m/s | 5.8 |
| 15:00 | Cloudy | 14 °C | 0% | 67% | 67% | 765 mm Hg | E 96° 4.31 (4.94) m/s | 4.4 |
| 16:00 | Partly cloudy | 13 °C | 0% | 51% | 68% | 765 mm Hg | ESE 103° 4 (4.61) m/s | 2.8 |
| 17:00 | Partly cloudy | 12 °C | 0% | 32% | 71% | 764 mm Hg | ESE 103° 4.19 (4.83) m/s | 1.4 |
| 18:00 | Partly cloudy | 11 °C | 0% | 42% | 77% | 764 mm Hg | ESE 108° 4.11 (4.89) m/s | 0.5 |
| 19:00 |  Patchy rain possible | 10 °C | 84% (0.01 mm/hr) | 81% | 84% | 764 mm Hg | ESE 113° 3.69 (4.72) m/s | 0 |
| 20:00 | Cloudy | 9 °C | 0% | 67% | 88% | 764 mm Hg | ESE 117° 3.69 (4.92) m/s | 0 |
| 21:00 |  Patchy rain possible | 9 °C | 82% (0.01 mm/hr) | 92% | 88% | 764 mm Hg | ESE 122° 3.5 (4.58) m/s | 0 |
| 22:00 |  Overcast | 9 °C | 0% | 93% | 90% | 764 mm Hg | SE 131° 3 (4.06) m/s | 0 |
| 23:00 | Patchy rain possible | 9 °C | 65% (0.01 mm/hr) | 100% | 90% | 764 mm Hg | SE 138° 2.89 (3.94) m/s | 0 |
Sat, Apr 18, 2026
Boston on the map
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.