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

18°F

-8°C

Humidity 93%
Wind Speed Calm
Barometer 30.42 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 19 Mar 12:55 am EDT
Extended Forecast for

Onset MA

  • Overnight

    Overnight: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Calm wind becoming south 5 to 8 mph in the morning.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Southwest wind around 5 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45. Southwest wind 5 to 9 mph.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain, mainly after 1am. Mostly cloudy, with a low around 38. South wind 8 to 10 mph. Chance of precipitation is 50%.

    Low: 38 °F

    Slight Chance
    Rain then
    Chance Rain

  • Saturday

    Saturday: A chance of rain before 2pm. Mostly cloudy, with a high near 47. South wind 11 to 13 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. Southwest wind around 8 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 10am. Mostly cloudy, with a high near 48. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.

    High: 48 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain before 2am, then a chance of snow. Mostly cloudy, with a low around 34. Northwest wind 10 to 13 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 23. Calm wind.
Thursday
Mostly sunny, with a high near 39. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 31. Southwest wind around 5 mph.
Friday
Mostly sunny, with a high near 45. Southwest wind 5 to 9 mph.
Friday Night
A chance of rain, mainly after 1am. Mostly cloudy, with a low around 38. South wind 8 to 10 mph. Chance of precipitation is 50%.
Saturday
A chance of rain before 2pm. Mostly cloudy, with a high near 47. South wind 11 to 13 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 37. Southwest wind around 8 mph.
Sunday
A chance of rain after 10am. Mostly cloudy, with a high near 48. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.
Sunday Night
A chance of rain before 2am, then a chance of snow. Mostly cloudy, with a low around 34. Northwest wind 10 to 13 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 39. North wind around 15 mph.
Monday Night
Partly cloudy, with a low around 28. North wind around 9 mph.
Tuesday
Mostly sunny, with a high near 37. North wind 7 to 10 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 30. West wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 43. West wind around 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onset MA
 41.73°N 70.66°W (Elev. 20 ft)
Last Update:
6:12 pm EDT Mar 18, 2026
Forecast Valid:
1am EDT Mar 19, 2026-6pm EDT Mar 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