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.

Overcast

42°F

6°C

Humidity 55%
Wind Speed NW 17 G 23 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Mar 4:54 pm EDT
Extended Forecast for

Somerville MA

  • This Afternoon

    This Afternoon: Rain and snow. Steady temperature around 39. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow, becoming all snow after 9pm, then gradually ending. Low around 29. West wind around 8 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain/Snow
    then Partly
    Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 44. West wind 5 to 10 mph becoming south in the afternoon.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of snow before 10pm, then a chance of rain. Mostly cloudy, with a low around 36. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 10 to 17 mph, with gusts as high as 43 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 5 to 10 mph, with gusts as high as 31 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain. High near 61. South wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.

    High: 61 °F

    Rain

Detailed Forecast

This Afternoon
Rain and snow. Steady temperature around 39. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tonight
Rain and snow, becoming all snow after 9pm, then gradually ending. Low around 29. West wind around 8 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 44. West wind 5 to 10 mph becoming south in the afternoon.
Friday Night
A slight chance of snow before 10pm, then a chance of rain. Mostly cloudy, with a low around 36. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 48. West wind 10 to 17 mph, with gusts as high as 43 mph.
Saturday Night
Mostly clear, with a low around 30. West wind 5 to 10 mph, with gusts as high as 31 mph.
Sunday
Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Sunday Night
Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
Rain. High near 61. South wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
Monday Night
Rain. Low around 41. South wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Tuesday
A chance of rain. Partly sunny, with a high near 50. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 25. West wind 7 to 9 mph.
Wednesday
Sunny, with a high near 38. West wind around 8 mph.
Wednesday Night
Partly cloudy, with a low around 26. West wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
4:59 pm EDT Mar 12, 2026
Forecast Valid:
5pm EDT Mar 12, 2026-6pm EDT Mar 19, 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