National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Partly Cloudy

77°F

25°C

Humidity 35%
Wind Speed W 14 G 25 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 26 Aug 3:54 pm EDT
Extended Forecast for

Chelsea MA

  • Tonight

    Tonight: Mostly clear, with a low around 59. West wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers after 11am. Mostly sunny, with a high near 77. Northwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Northwest wind 3 to 6 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 78 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. South wind around 7 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 77. South wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 57. West wind around 6 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 73. West wind around 7 mph.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West wind 3 to 5 mph.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. West wind 5 to 11 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of showers after 11am. Mostly sunny, with a high near 77. Northwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 58. Northwest wind 3 to 6 mph.
Thursday
Increasing clouds, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 61. South wind around 7 mph.
Friday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 77. South wind 6 to 10 mph. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 57. West wind around 6 mph. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 73. West wind around 7 mph.
Saturday Night
Mostly clear, with a low around 55. West wind 3 to 5 mph.
Sunday
Sunny, with a high near 74. Northwest wind around 6 mph becoming east in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Southeast wind around 5 mph becoming light and variable in the evening.
Labor Day
Sunny, with a high near 74. Northwest wind 5 to 8 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 57. Southeast wind around 6 mph becoming light and variable in the evening.
Tuesday
Sunny, with a high near 74. North wind 5 to 9 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea MA
 42.4°N 71.03°W (Elev. 49 ft)
Last Update:
2:08 pm EDT Aug 26, 2025
Forecast Valid:
4pm EDT Aug 26, 2025-6pm EDT Sep 2, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation