National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Fair

76°F

24°C

Humidity 91%
Wind Speed SW 12 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 17 Jul 1:54 am EDT
Extended Forecast for

Allston MA

Heat Advisory July 17, 02:51am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 17, 02:51am until July 17, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Overnight

    Low: 75 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 4pm. Areas of fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny and hot, with a high near 92. Heat index values as high as 99. Southwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    Showers and
    Areas Fog

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. North wind 11 to 16 mph, with gusts as high as 29 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 69. Southwest wind around 8 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 8am. Partly sunny, with a high near 81. West wind 7 to 9 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 75. South wind around 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 4pm. Areas of fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny and hot, with a high near 92. Heat index values as high as 99. Southwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 83. North wind 11 to 16 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 7 mph in the morning.
Saturday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 69. Southwest wind around 8 mph. Chance of precipitation is 60%.
Sunday
Showers likely, with thunderstorms also possible after 8am. Partly sunny, with a high near 81. West wind 7 to 9 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 63. Northwest wind around 6 mph.
Monday
Sunny, with a high near 78. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 61. Northeast wind around 6 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 81. West wind 5 to 7 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 64. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 85. Southwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allston MA
 42.35°N 71.13°W (Elev. 112 ft)
Last Update:
2:32 am EDT Jul 17, 2025
Forecast Valid:
2am EDT Jul 17, 2025-6pm EDT Jul 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation