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.

Fog/Mist

45°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 45°F (7°C)
Visibility 1.50 mi
Last update 19 Apr 12:55 am EDT
Extended Forecast for

Onset MA

  • Overnight

    Overnight: Patchy drizzle after 4am. Patchy fog. Otherwise, cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. Patchy fog. High near 54. South wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 37. West wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly sunny, with a high near 48. West wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 48 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 10pm. Mostly cloudy, with a low around 34. North wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44. North wind 6 to 9 mph becoming east in the afternoon.

    High: 44 °F

    Sunny

  • Tuesday Night

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

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 11am and noon. Mostly cloudy, with a high near 49. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. West wind 3 to 6 mph.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle after 4am. Patchy fog. Otherwise, cloudy, with a low around 44. Calm wind.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. Patchy fog. High near 54. South wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 37. West wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 48. West wind 6 to 8 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before 10pm. Mostly cloudy, with a low around 34. North wind 6 to 9 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 44. North wind 6 to 9 mph becoming east in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 37. Southwest wind around 8 mph.
Wednesday
A chance of showers between 11am and noon. Mostly cloudy, with a high near 49. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 40. West wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 55. Northwest wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 42. Southwest wind around 5 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 53. North wind 5 to 9 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 42. Southeast wind around 6 mph becoming calm after midnight.
Saturday
Partly sunny, with a high near 53. Northeast wind 5 to 8 mph becoming east in the afternoon.
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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:
6:31 pm EDT Apr 18, 2026
Forecast Valid:
1am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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