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

43°F

6°C

Humidity 68%
Wind Speed S 16 G 30 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 22 Mar 11:54 am EDT
Extended Forecast for

Somerville MA

  • This Afternoon

    This Afternoon: Rain, mainly before 5pm. Patchy fog after 2pm. High near 45. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain before 4am, then snow, possibly mixed with rain and sleet. Patchy fog before 11pm. Low around 34. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.

    Low: 34 °F

    Rain and
    Patchy Fog
    then Wintry
    Mix

  • Monday

    Monday: Snow showers, possibly mixed with rain and sleet before 7am, then snow showers likely, possibly mixed with sleet between 7am and 8am, then snow showers likely after 8am. High near 38. North wind 10 to 13 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.

    High: 38 °F

    Wintry Mix
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 31. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northwest wind around 6 mph becoming west in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind around 7 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Southwest wind 5 to 7 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain. Partly sunny, with a high near 53. South wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 53 °F

    Chance Rain

Detailed Forecast

This Afternoon
Rain, mainly before 5pm. Patchy fog after 2pm. High near 45. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain before 4am, then snow, possibly mixed with rain and sleet. Patchy fog before 11pm. Low around 34. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.
Monday
Snow showers, possibly mixed with rain and sleet before 7am, then snow showers likely, possibly mixed with sleet between 7am and 8am, then snow showers likely after 8am. High near 38. North wind 10 to 13 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.
Monday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 31. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
Mostly sunny, with a high near 45. Northwest wind around 6 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind around 7 mph.
Wednesday
Mostly cloudy, with a high near 53. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 35. Southwest wind 5 to 7 mph.
Thursday
A chance of rain. Partly sunny, with a high near 53. South wind 6 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Rain likely, mainly after 9pm. Mostly cloudy, with a low around 40. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Friday
A chance of rain. Mostly sunny, with a high near 49. Northwest wind 10 to 13 mph. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 23. Northwest wind 6 to 8 mph.
Saturday
Sunny, with a high near 40. Northwest wind around 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 ft)
Last Update:
10:50 am EDT Mar 22, 2026
Forecast Valid:
12pm EDT Mar 22, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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