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.

Partly Cloudy

68°F

20°C

Humidity 90%
Wind Speed S 8 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 14 Jul 1:54 am EDT
Extended Forecast for

Weymouth MA

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. South wind 3 to 5 mph.

    Low: 66 °F

    Patchy Fog

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 85 °F

    Patchy Fog
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 71. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 88. Heat index values as high as 96. South wind around 6 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. Southwest wind around 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 91. South wind 5 to 7 mph.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 73. Southwest wind around 7 mph.

    Low: 73 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. South wind 3 to 5 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 71. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 88. Heat index values as high as 96. South wind around 6 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 71. Southwest wind around 6 mph.
Wednesday
Mostly sunny and hot, with a high near 91. South wind 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 73. Southwest wind around 7 mph.
Thursday
A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. West wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northwest wind around 6 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82. North wind 6 to 8 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 83. Southwest wind 5 to 8 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.21°N 70.96°W (Elev. 98 ft)
Last Update:
2:05 am EDT Jul 14, 2025
Forecast Valid:
2am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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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