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.

A Few Clouds

73°F

23°C

Humidity 62%
Wind Speed S 12 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Aug 8:54 pm EDT
Extended Forecast for

Somerville MA

  • Tonight

    Tonight: Mostly clear, with a low around 68. Southwest wind around 6 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Isolated showers after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 95. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 92 °F

    Sunny then
    Isolated
    Showers

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind 6 to 9 mph becoming northeast in the evening. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Scattered
    Showers

  • Monday

    Monday: Sunny, with a high near 72. Northeast wind around 10 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. East wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Light northeast wind becoming east 5 to 9 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 3am. Mostly cloudy, with a low around 60. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 73. Southeast wind 6 to 9 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 61. Northeast wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Southwest wind around 6 mph.
Sunday
Isolated showers after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 95. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind 6 to 9 mph becoming northeast in the evening. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Sunny, with a high near 72. Northeast wind around 10 mph.
Monday Night
Partly cloudy, with a low around 57. East wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 73. Light northeast wind becoming east 5 to 9 mph in the morning.
Tuesday Night
A chance of showers after 3am. Mostly cloudy, with a low around 60. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 73. Southeast wind 6 to 9 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Northeast wind 5 to 7 mph. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 74. Northeast wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 58. Northeast wind around 6 mph becoming northwest after midnight.
Friday
Sunny, with a high near 82. Northwest wind around 7 mph.
Friday Night
Mostly clear, with a low around 64. Southwest wind around 6 mph.
Saturday
Sunny, with a high near 85. South wind 6 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
7:02 pm EDT Aug 16, 2025
Forecast Valid:
9pm EDT Aug 16, 2025-6pm EDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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