National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

52°F

11°C

Humidity 38%
Wind Speed SE 6 mph
Barometer 30.56 in (1034.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 18 Oct 2:54 pm EDT
Extended Forecast for

Somerville MA

  • Tonight

    Tonight: Clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 58. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 44. North wind 3 to 6 mph.

    Low: 44 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 60. Northeast wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. Northeast wind 8 to 11 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55. Northeast wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. North wind around 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. North wind around 8 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. North wind 5 to 9 mph.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 39. Light and variable wind.
Monday
Sunny, with a high near 58. Calm wind becoming east 5 to 8 mph in the afternoon.
Monday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 44. North wind 3 to 6 mph.
Tuesday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 60. Northeast wind 9 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 45. Northeast wind 8 to 11 mph.
Wednesday
Partly sunny, with a high near 55. Northeast wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 41. North wind around 7 mph.
Thursday
Mostly sunny, with a high near 61. North wind around 8 mph.
Thursday Night
Mostly clear, with a low around 44. North wind 5 to 9 mph.
Friday
Sunny, with a high near 56. North wind 10 to 13 mph.
Friday Night
Mostly clear, with a low around 40. North wind around 7 mph.
Saturday
Sunny, with a high near 55. Northeast wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 39. Light and variable wind.
Sunday
Sunny, with a high near 60. Southwest wind around 6 mph.
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:
2:43 pm EDT Oct 18, 2026
Forecast Valid:
3pm EDT Oct 18, 2026-6pm EDT Oct 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