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.

Fog/Mist

49°F

9°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.74 in (1007.0 mb)
Dewpoint 49°F (9°C)
Visibility 3.00 mi
Wind Chill47°F (8°C)
Last update 19 Apr 11:54 am EDT
Extended Forecast for

Somerville MA

  • This Afternoon

    This Afternoon: Rain and possibly a thunderstorm. Temperature falling to around 47 by 5pm. West wind 5 to 15 mph becoming northwest. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F⇓

    Rain

  • Tonight

    Tonight: A chance of rain, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 36. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain
    then Mostly
    Clear

  • Monday

    Monday: A chance of rain, mainly after 4pm. Increasing clouds, with a high near 52. West wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 52 °F

    Mostly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. North wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50. North wind around 6 mph becoming southeast in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 37. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 55. South wind 6 to 8 mph.

    High: 55 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. South wind around 6 mph becoming light and variable after midnight.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63. West wind 5 to 8 mph.

    High: 63 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain and possibly a thunderstorm. Temperature falling to around 47 by 5pm. West wind 5 to 15 mph becoming northwest. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 36. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of rain, mainly after 4pm. Increasing clouds, with a high near 52. West wind 6 to 8 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 33. North wind around 6 mph.
Tuesday
Sunny, with a high near 50. North wind around 6 mph becoming southeast in the afternoon.
Tuesday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 37. South wind around 6 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 55. South wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 41. South wind around 6 mph becoming light and variable after midnight.
Thursday
Partly sunny, with a high near 63. West wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 42. North wind 3 to 6 mph.
Friday
Partly sunny, with a high near 60. North wind 5 to 7 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 42. East wind around 6 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 60. Northeast wind 5 to 8 mph becoming east in the afternoon.
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 71.12°W (Elev. 46 ft)
Last Update:
3:05 am EDT Apr 19, 2026
Forecast Valid:
12pm EDT Apr 19, 2026-6pm EDT Apr 25, 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