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

69°F

21°C

Humidity 87%
Wind Speed E 8 mph
Barometer 29.87 in (1011.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Aug 7:54 pm EDT
Extended Forecast for

Somerville MA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 67. East wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Light southwest wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80. North wind 5 to 8 mph becoming east in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Light northeast wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 11am. Partly sunny, with a high near 77. Light northeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 67. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68. Light southwest wind.
Thursday
Mostly sunny, with a high near 84. Light and variable wind becoming north around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 64. Light and variable wind.
Friday
Sunny, with a high near 80. North wind 5 to 8 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 64. Light northeast wind.
Saturday
A chance of showers after 11am. Partly sunny, with a high near 77. Light northeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 79. Northeast wind 5 to 7 mph becoming southeast in the afternoon. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 30%.
Monday
Sunny, with a high near 82. West wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 62. West wind around 6 mph.
Tuesday
Sunny, with a high near 82. West wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
1:02 pm EDT Aug 18, 2026
Forecast Valid:
8pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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