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.

Overcast

81°F

27°C

Humidity 45%
Wind Speed S 18 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 27 Aug 3:54 pm EDT
Extended Forecast for

Somerville MA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 70. South wind 8 to 13 mph becoming light after midnight. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 83. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65. Light and variable wind becoming northwest around 5 mph after midnight.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 6 mph becoming east in the afternoon.

    High: 80 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. South wind around 5 mph becoming light and variable in the evening.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. West wind 5 to 9 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. Southwest wind around 6 mph.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 81. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 66. Light southeast wind. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 70. South wind 8 to 13 mph becoming light after midnight. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 83. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly cloudy, with a low around 65. Light and variable wind becoming northwest around 5 mph after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 6 mph becoming east in the afternoon.
Saturday Night
Mostly clear, with a low around 60. South wind around 5 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 87. West wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 68. Southwest wind around 6 mph.
Monday
Partly sunny, with a high near 81. Light and variable wind becoming east 5 to 7 mph in the morning.
Monday Night
A chance of showers. Mostly cloudy, with a low around 66. Light southeast wind. Chance of precipitation is 30%.
Tuesday
A chance of showers before 10am, then a chance of showers after noon. Partly sunny, with a high near 78. East wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 78. Southeast wind 6 to 9 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Northeast wind 5 to 7 mph. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 79. East wind 7 to 9 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
2:36 pm EDT Aug 27, 2026
Forecast Valid:
4pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation