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.

Mostly Cloudy

22°C

72°F

Humidity 82%
Wind Speed E 17 km/h
Barometer 1020.7 mb (30.14 in)
Dewpoint 19°C (66°F)
Visibility 16 km
Last update 13 Jul 10:54 am EDT
Extended Forecast for

Somerville MA

  • Today

    Today: Mostly sunny, with a high near 27. East wind 10 to 13 km/h.

    High: 27 °C

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 20. Southeast wind 5 to 10 km/h becoming calm after midnight.

    Low: 20 °C

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 30. South wind 5 to 11 km/h. Chance of precipitation is 20%.

    High: 30 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 22. Southwest wind 8 to 10 km/h. Chance of precipitation is 20%.

    Low: 22 °C

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 32. Southwest wind 5 to 10 km/h.

    High: 32 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Southwest wind 5 to 8 km/h.

    Low: 22 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 33. Light southwest wind becoming south 6 to 11 km/h in the morning.

    High: 33 °C

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. Southwest wind around 11 km/h.

    Low: 24 °C

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 3pm. Partly sunny and hot, with a high near 32. Southwest wind 10 to 16 km/h. Chance of precipitation is 30%.

    High: 32 °C

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 27. East wind 10 to 13 km/h.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 20. Southeast wind 5 to 10 km/h becoming calm after midnight.
Monday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 30. South wind 5 to 11 km/h. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 22. Southwest wind 8 to 10 km/h. Chance of precipitation is 20%.
Tuesday
Mostly sunny and hot, with a high near 32. Southwest wind 5 to 10 km/h.
Tuesday Night
Mostly clear, with a low around 22. Southwest wind 5 to 8 km/h.
Wednesday
Sunny and hot, with a high near 33. Light southwest wind becoming south 6 to 11 km/h in the morning.
Wednesday Night
Mostly cloudy, with a low around 24. Southwest wind around 11 km/h.
Thursday
A chance of showers and thunderstorms after 3pm. Partly sunny and hot, with a high near 32. Southwest wind 10 to 16 km/h. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 24. Southwest wind around 11 km/h. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 32. West wind 10 to 13 km/h. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 21. Northwest wind around 8 km/h. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 28. North wind 10 to 13 km/h becoming east in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.09°W (Elev. 46 m)
Last Update:
6:25 am EDT Jul 13, 2025
Forecast Valid:
11am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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Additional Resources

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Chance of Precipitation