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.

Fair

66°F

19°C

Humidity 88%
Wind Speed N 6 mph
Barometer 30.16 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Aug 7:55 am EDT
Extended Forecast for

Onset MA

  • Today

    Today: Sunny, with a high near 79. North wind around 7 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 1am. Increasing clouds, with a low around 66. South wind 7 to 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 77. Southeast wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 65. North wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. North wind around 7 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Light west wind becoming south 5 to 10 mph in the afternoon.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. North wind around 7 mph.
Tonight
Mostly clear, with a low around 56. Calm wind.
Sunday
Sunny, with a high near 80. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
A chance of showers, mainly after 1am. Increasing clouds, with a low around 66. South wind 7 to 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 77. Southeast wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 65. North wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 78. North wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 81. Light west wind becoming south 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 68. South wind around 7 mph.
Thursday
A chance of showers. Partly sunny, with a high near 81. Southwest wind 8 to 13 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 76. North wind 8 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:
6:32 am EDT Aug 15, 2026
Forecast Valid:
8am EDT Aug 15, 2026-6pm EDT Aug 21, 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