5-day weather forecast Boston 15-04-2026

Weather forecast Boston tomorrow 15.04.2026: partly cloudy, temperature from 8 °C to 18 °C.

Precipitation probability 100%. Wind up to 2.31 m/s (gusts 4.5 m/s). Air humidity 75–98%, atmospheric pressure 757–764 mm Hg, UV index up to 6.4.

Sunrise 06:03
Sunset 19:26

Waning Crescent8% illuminated
Moonrise 04:56 · Moonset 17:34

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Table

← Tue, Apr 14

Wed, Apr 15, 2026

Thu, Apr 16 →

Forecast from 8 °C to 18 °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)	18	17	16	15	14	12	11	10	10	10	10	10	10	10	10	9	9	9	8	8	8	8	11	10
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.48

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 (%)	56	3	0	16	24	32	62	77	93	65	51	37	34	33	32	37	39	42	71	85	100	99	99	100
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	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)	1.11	1.61	1.5	1	0.31	1.11	1.19	1.39	1.61	1.69	1.81	1.19	1.81	1	1.19	1.81	2	1.31	1.89	1.89	2.19	2.31	1.5	1.5
Wind gust (m/s)	2.31	3.36	3.14	2.11	0.64	2.31	2.53	2.72	2.69	2.42	2.47	1.67	2.42	1.39	1.89	2.89	3.75	2.47	3.78	3.92	4.5	4.28	2.47	2.53
Wind direction (°)	WSW 248°	SW 225°	SW 229°	WSW 239°	SSW 212°	E 97°	E 82°	NE 55°	E 79°	ESE 109°	ESE 114°	ESE 119°	ESE 123°	SE 130°	ENE 73°	NE 53°	E 90°	NE 49°	ENE 76°	ENE 60°	E 85°	E 84°	NE 48°	N 9°

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 (%)	85	88	88	89	89	89	90	91	91	83	79	75	75	75	76	79	80	81	86	88	91	90	90	98

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)	757	757	758	758	759	760	761	762	763	763	764	764	764	764	764	763	763	762	762	762	762	761	761	758

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	0.2	0.9	2.1	3.6	5.4	6.4	6.2	4.7	4.5	2.6	1	0.3	0	0	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	12.8	13.2	13.5	14.1	14.1	13.9	12.4	10.2	9.6	9.6	9.7	9.7	10.9	13.5	16.3	19.4	20	20.5	21	21.2	21.4	20.7	20.5	22.1
PM10 (µg/m³)	13.2	13.5	13.8	14.5	14.3	14.3	12.9	10.7	10.4	10.6	10.7	10.9	12.3	15	17.7	20.5	20.9	21.3	21.8	21.9	22	21.3	21	22.7
Ozone (O₃) (µg/m³)	91	86	77	68	64	71	83	95	104	113	116	112	103	93	84	74	64	55	46	39	34	31	27	19
NO₂ (µg/m³)	11.5	12.9	16.7	21.6	23.8	20.8	15.1	10.4	7.7	6	6.3	9.2	14.1	20.1	27.8	36.6	43.6	47.6	49.8	50.8	50	48	47.6	50.8
SO₂ (µg/m³)	6.1	6.3	6.5	6.7	6.6	6.1	5.2	4.5	3.9	3.4	3.1	3	3.2	3.6	4.5	5.6	6.4	6.8	6.9	6.8	6.5	6.1	5.8	5.6
CO (µg/m³)	188.9	202.9	234.9	273.9	295.9	283.9	252.9	226.9	207.9	193.9	191.9	210.9	243.9	276.9	311.9	345.9	362.9	347.9	314.9	285.9	269.9	257.9	244.9	222.9

← Tue, Apr 14

Wed, Apr 15, 2026

Thu, Apr 16 →

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.

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