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.

Fair

35°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 30.31 in (1026.1 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 8 Jan 11:54 pm EST
Extended Forecast for

Somerville MA

  • Overnight

    Overnight: Patchy freezing fog. Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Patchy
    Freezing Fog

  • Friday

    Friday: Patchy fog between 9am and 11am. Patchy freezing fog before 9am. Otherwise, mostly cloudy, with a high near 49. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 49 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers, mainly before 10pm. Patchy fog between 8pm and 2am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 39. South wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Saturday

    Saturday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 46. West wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain. Patchy fog before 8pm. Low around 38. East wind 3 to 6 mph. Chance of precipitation is 100%.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. North wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%.

    High: 42 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain before 10pm. Partly cloudy, with a low around 28. West wind 7 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37. West wind 9 to 13 mph, with gusts as high as 26 mph.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Southwest wind around 6 mph.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy freezing fog. Partly cloudy, with a low around 27. Calm wind.
Friday
Patchy fog between 9am and 11am. Patchy freezing fog before 9am. Otherwise, mostly cloudy, with a high near 49. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
A chance of showers, mainly before 10pm. Patchy fog between 8pm and 2am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 39. South wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 46. West wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain. Patchy fog before 8pm. Low around 38. East wind 3 to 6 mph. Chance of precipitation is 100%.
Sunday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. North wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%.
Sunday Night
A chance of rain before 10pm. Partly cloudy, with a low around 28. West wind 7 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 37. West wind 9 to 13 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 29. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 43. Southwest wind 7 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 47. Southwest wind 6 to 9 mph.
Wednesday Night
A chance of rain. Cloudy, with a low around 32. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 39. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
12:42 am EST Jan 9, 2026
Forecast Valid:
12am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation