5-day weather forecast Boston 05-05-2026

Weather forecast Boston tomorrow 05.05.2026: sunny, temperature from 12 °C to 26 °C.

No precipitation expected. Wind up to 7.69 m/s (gusts 10.89 m/s). Air humidity 33–76%, atmospheric pressure 755–758 mm Hg, UV index up to 6.3.

Sunrise 05:34
Sunset 19:49

Waning Gibbous90% illuminated
Moonrise below the horizon · Moonset 07:37

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Table

← Mon, May 4

Tue, May 5, 2026

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Forecast from 12 °C to 26 °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)	12	12	12	12	12	12	12	13	15	18	20	22	24	25	26	26	25	23	21	20	18	18	17	17
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

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 (%)	0	9	9	10	11	13	25	27	7	4	1	0	0	7	8	6	4	5	7	46	30	25	28	16
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	0

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)	4.81	4.5	4.61	4.5	4.31	4.61	4.89	5.39	5.39	5.81	6.11	6.39	6.89	7.39	7.69	7.69	7.61	7.61	7.5	7.61	6.89	6.5	6.31	6.61
Wind gust (m/s)	7.58	7.33	7.72	7.92	7.78	8.14	8.11	7.81	7.06	7.22	7.47	7.58	8.14	8.78	9.03	8.86	9.11	9.42	9.92	10.89	10.31	9.86	9.72	10.36
Wind direction (°)	SSW 206°	SSW 206°	SSW 210°	SSW 210°	SSW 205°	SSW 201°	SSW 196°	SSW 203°	SSW 204°	SW 215°	SSW 213°	SW 215°	SW 216°	SW 220°	SW 216°	SSW 212°	SSW 201°	SSW 200°	SSW 199°	SSW 199°	SSW 208°	SSW 207°	SSW 210°	SSW 212°

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 (%)	58	70	72	71	71	74	76	76	71	60	52	45	40	34	33	35	38	42	48	55	58	60	60	62

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)	758	758	758	758	758	758	758	758	758	758	757	757	756	756	755	756	755	756	756	757	758	758	758	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	0.3	1.1	2.3	3.9	5.3	6.2	6.3	5.7	4.5	3	1.5	0.6	0.1	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)	6	6	6.1	6.5	7.4	7.8	7.9	8.1	8	7.8	7.7	7.6	7.5	7.6	7.6	7.6	7.3	7	6.8	6.6	6.5	6.3	6.3	6.3
PM10 (µg/m³)	7.2	7.2	7.4	7.8	8.9	9.4	9.4	9.4	9	8.7	8.4	8.3	8.3	8.4	8.7	8.6	8.6	8.3	8.1	8	7.9	7.8	7.8	7.8
Ozone (O₃) (µg/m³)	109	107	103	98	96	99	105	112	122	134	142	142	138	133	129	125	122	121	122	121	119	115	112	110
NO₂ (µg/m³)	6.2	6.3	7.5	9.2	10.2	9.9	8.9	7.8	6.7	5.6	5	5.2	5.9	6.7	7.8	8.9	9.5	9	7.9	6.9	6	5.2	4.7	4.4
SO₂ (µg/m³)	3.2	3.1	3.1	3.2	3.3	3.5	3.7	3.9	3.9	3.8	3.7	3.6	3.5	3.4	3.3	3.3	3.2	3.1	2.9	2.7	2.5	2.4	2.3	2.3
CO (µg/m³)	158.9	160.9	169.9	182.9	191.9	194.9	194.9	192.9	188.9	183.9	181.9	185.9	192.9	197.9	198.9	197.9	192.9	183.9	170.9	159.9	151.9	145.9	141.9	137.9

← Mon, May 4

Tue, May 5, 2026

Wed, May 6 →

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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