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

Otis Air National Guard Base (KFMH)

Lat: 41.65°NLon: 70.52°WElev: 131ft.

Partly Cloudy

70°F

21°C

Humidity 88%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Aug 7:55 pm EDT
Extended Forecast for

Onset MA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77. North wind 3 to 8 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely after 8am. Partly sunny, with a high near 75. East wind 5 to 9 mph. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 66. Light northeast wind. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 67. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 65. Light and variable wind.
Friday
Mostly sunny, with a high near 77. North wind 3 to 8 mph.
Friday Night
Mostly cloudy, with a low around 64. Light and variable wind.
Saturday
Showers likely after 8am. Partly sunny, with a high near 75. East wind 5 to 9 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 66. Light northeast wind. Chance of precipitation is 60%.
Sunday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 78. Light and variable wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. Light southwest wind. Chance of precipitation is 30%.
Monday
Sunny, with a high near 79. West wind 5 to 13 mph.
Monday Night
Mostly clear, with a low around 63. West wind 3 to 6 mph.
Tuesday
Sunny, with a high near 78. Southwest wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onset MA
 41.75°N 70.65°W (Elev. 10 ft)
Last Update:
1:02 pm EDT Aug 18, 2026
Forecast Valid:
8pm EDT Aug 18, 2026-6pm EDT Aug 25, 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