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Weather Forecast for Boston

Massachusetts, United States of America

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Overcast

Current Weather - Boston: 14°C

Massachusetts, United States of America

Overcast

Feels like 9°C

Wind

21 km/h NE

Humidity

63%

Pressure

1030 mb

UV Index

0

Visibility

10 km
Overcast

Overcast

Wednesday, September 23, 2026

High

16°C

Low

13°C

Rain Chance

12%

Hourly Forecast

Overcast 14°C
06:00
Overcast 14°C
07:00
Patchy rain nearby 15°C
08:00
Patchy rain nearby 16°C
09:00
Sunny 16°C
10:00
Patchy rain nearby 16°C
11:00
Overcast 16°C
12:00
Overcast 16°C
13:00
Overcast 16°C
14:00
Overcast 15°C
15:00
Sunny 15°C
16:00
Sunny 14°C
17:00
Sunny 14°C
18:00
Clear 13°C
19:00
Clear 13°C
20:00
Clear 13°C
21:00
Clear 13°C
22:00
Cloudy 13°C
23:00
Sep 24

Day Statistics

Maximum Wind

29 km/h

Humidity

63%

Precipitation

0 mm

UV Index

5

Visibility

10 km

Rain Chance

12%

Snow Chance

0%

Sun & Moon

Sunrise

06:32 AM

Sunset

06:40 PM

Moonrise

05:25 PM

Moonset

03:24 AM

Moon Phase

Waxing Gibbous

Moon Illumination

95%

Air Quality

PM2.5

6.8

μg/m³

PM10

9.6

μg/m³

NO₂

6.7

μg/m³

O₃

59.8

μg/m³

SO₂

0.8

μg/m³

CO

142.5

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Small Craft Advisory issued September 22 at 4:29PM EDT until September 24 at 8:00PM EDT by NWS Boston/Norton MA

Boston Harbor Sep 22, 04:29 PM - Sep 23, 05:30 AM
Severity: Minor Urgency: Expected

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 4 feet. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

Event: Small Craft Advisory Certainty: Likely Category: Met