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

65°F

18°C

Humidity 84%
Wind Speed N 9 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 31 Aug 6:54 am EDT
Extended Forecast for

Chelsea MA

  • Today

    Today: Mostly sunny, with a high near 76. North wind 5 to 9 mph becoming east in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers, mainly after 2am. Increasing clouds, with a low around 64. South wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers, mainly before noon. The rain could be heavy at times. Patchy fog before 3pm. High near 71. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Heavy Rain
    and Patchy
    Fog then
    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 2am. Cloudy, with a low around 62. East wind 5 to 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 71. East wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 63. Southeast wind around 6 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 64. Northwest wind around 5 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Northwest wind 7 to 9 mph.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 76. North wind 5 to 9 mph becoming east in the afternoon.
Tonight
A chance of showers, mainly after 2am. Increasing clouds, with a low around 64. South wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers, mainly before noon. The rain could be heavy at times. Patchy fog before 3pm. High near 71. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
A chance of showers, mainly before 2am. Cloudy, with a low around 62. East wind 5 to 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 71. East wind 7 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 63. Southeast wind around 6 mph. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 64. Northwest wind around 5 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 73. Northwest wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around 62. North wind around 6 mph.
Saturday
Mostly sunny, with a high near 70. Northeast wind 9 to 11 mph.
Saturday Night
Partly cloudy, with a low around 59. North wind 3 to 5 mph.
Sunday
Sunny, with a high near 71. North wind 6 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea MA
 42.38°N 71.04°W (Elev. 49 ft)
Last Update:
6:40 am EDT Aug 31, 2026
Forecast Valid:
7am EDT Aug 31, 2026-6pm EDT Sep 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation