Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

77°F

25°C

Humidity 77%
Wind Speed W 8 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 9 Aug 6:54 am EDT
Extended Forecast for

Chelsea MA

  • Today

    Today: Sunny and hot, with a high near 92. West wind 8 to 13 mph.

    High: 92 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 71. West wind 5 to 9 mph.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds and hot, with a high near 90. Northwest wind 5 to 9 mph becoming southeast in the afternoon.

    High: 90 °F

    Hot

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 70. West wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 89. West wind 7 to 9 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. West wind 3 to 6 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Light and variable wind becoming east 5 to 7 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 3am.  Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming light and variable  after midnight.  Chance of precipitation is 30%.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the morning.  Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 92. West wind 8 to 13 mph.
Tonight
Mostly clear, with a low around 71. West wind 5 to 9 mph.
Monday
Increasing clouds and hot, with a high near 90. Northwest wind 5 to 9 mph becoming southeast in the afternoon.
Monday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. West wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 89. West wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 67. West wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 85. Light and variable wind becoming east 5 to 7 mph in the afternoon.
Wednesday Night
A chance of showers after 3am. Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 64. West wind around 7 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 82. Northwest wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 61. Northwest wind around 7 mph.
Saturday
Sunny, with a high near 81. Northwest wind 7 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Chelsea MA
 42.4°N 71.03°W (Elev. 49 ft)
6:31 am EDT Aug 9, 2026
7am EDT Aug 9, 2026-6pm EDT Aug 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database