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

71°F

22°C

Humidity 55%
Wind Speed W 9 mph
Barometer 29.76 in (1007.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 10:54 pm EDT
Extended Forecast for

Somerville MA

  • Tonight

    Tonight: Clear, with a low around 61. West wind 3 to 5 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 81. West wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Sunny then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then becoming clear, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 2pm. Increasing clouds, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 63. Southeast wind around 7 mph. Chance of precipitation is 100%.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly cloudy, with a high near 80. North wind around 8 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 61. West wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 81. West wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then becoming clear, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly after 2pm. Increasing clouds, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Southeast wind around 7 mph. Chance of precipitation is 100%.
Tuesday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly cloudy, with a high near 80. North wind around 8 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 65. Light and variable wind.
Thursday
Mostly sunny, with a high near 85. Calm wind becoming southeast 5 to 9 mph in the morning.
Thursday Night
A chance of showers. Partly cloudy, with a low around 65. South wind 3 to 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 84. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 66. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 87. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
10:11 pm EDT Jun 20, 2026
Forecast Valid:
11pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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