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

65°F

18°C

Humidity 93%
Wind Speed SE 7 mph
Barometer 29.91 in (1012.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 23 Jun 1:54 am EDT
Extended Forecast for

Somerville MA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Patchy fog. Low around 61. South wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers. Patchy fog before 11am. High near 75. South wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 61. Northwest wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northwest wind 7 to 9 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after midnight. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 83. South wind 6 to 10 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 11pm. Mostly cloudy, with a low around 67. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Patchy fog. Low around 61. South wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers. Patchy fog before 11am. High near 75. South wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 61. Northwest wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 82. Northwest wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Thursday Night
A chance of showers after midnight. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 83. South wind 6 to 10 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 67. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Light and variable wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 66. Light and variable wind.
Sunday
Sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 66. Light and variable wind.
Monday
Mostly sunny, with a high near 85. Calm wind becoming southeast 5 to 7 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.12°W (Elev. 46 ft)
Last Update:
8:56 pm EDT Jun 22, 2026
Forecast Valid:
2am EDT Jun 23, 2026-6pm EDT Jun 29, 2026
 
Forecast Discussion
 
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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