5-day weather forecast Boston 15-05-2026

Weather forecast Boston Friday, May 15 15.05.2026: light rain shower, temperature from 10 °C to 11 °C.

Precipitation probability 100%. Wind up to 3.69 m/s (gusts 5.25 m/s). Air humidity 92–98%, atmospheric pressure 753–755 mm Hg, UV index up to 3.

Sunrise 05:23
Sunset 19:59

Waning Crescent5% illuminated
Moonrise 04:08 · Moonset 19:02

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Table

← Thu, May 14

Fri, May 15, 2026

Forecast from 10 °C to 11 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	11	11	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	10	10	10	11	11	11	11
Precipitation (mm/hr)	0.14	0.08	0.21	0.3	0.6	0.45	0.29	0.25	0.27	0.26	0.16	0.11	0.05	0.04	0.06	0.08	0.12	0.1	0.1	0.15	0.13	0.09	0.03	0.06

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	100	100	100	100	100	100	100	100	100	100	100	99	100	100	100	100	100	100	100	100	100	96	98
Rain chance (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	83	100	100	100	100	100	100	100	100	77	100

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	3.5	3.31	2.81	2.69	2.31	2.19	2.5	2.81	2.89	3.11	3.11	3.31	3.5	3.61	3.69	3.69	3.69	3.31	2.89	2.11	2.31	3.11	3.31	3
Wind gust (m/s)	4.89	4.64	3.94	3.83	3.28	3.11	3.56	4	4.22	4.31	4.28	4.47	4.69	4.75	4.86	4.86	4.92	4.5	4.03	2.97	3.47	4.72	5.25	5.06
Wind direction (°)	NE 37°	NNE 29°	NNE 31°	NNE 29°	NNE 23°	NNE 17°	N 8°	N 5°	N 6°	N 9°	N 9°	N 4°	N 357°	N 356°	N 0°	N 1°	N 1°	N 351°	NNW 347°	NNW 334°	NW 308°	NW 310°	WNW 296°	WNW 292°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	97	97	97	97	97	98	98	98	98	97	97	96	95	94	93	92	92	93	94	96	96	96	96	95

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	754	753	753	753	753	753	754	754	754	754	754	754	754	754	754	754	755	755	755	755	755	755	755	755

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.1	0.3	3	3	3	3	3	3	3	3	3	3	3	0	0	0	0

← Thu, May 14

Fri, May 15, 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.

Learn more about our methodology →