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 93%
Wind Speed W 12 mph
Barometer 29.75 in
Dewpoint 43°F (6°C)
Visibility 1.00 mi
Wind Chill39°F (4°C)
Last update 21 Mar 3:56 am EDT
Extended Forecast for

Onset MA

  • Overnight

    Overnight: A slight chance of rain before 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southwest wind around 10 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 48. West wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 37. Northeast wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain, mainly after noon. Patchy fog after 4pm. Otherwise, cloudy, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Rain. Patchy fog before 9pm. Low around 34. Southwest wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%.

    Low: 34 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Rain, possibly mixed with snow before 3pm, then a slight chance of snow. High near 38. North wind around 15 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. North wind around 10 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. North wind 6 to 9 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. Southwest wind 8 to 10 mph.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of rain before 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southwest wind around 10 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 48. West wind 6 to 11 mph, with gusts as high as 22 mph.
Saturday Night
Increasing clouds, with a low around 37. Northeast wind around 6 mph becoming calm in the evening.
Sunday
A chance of rain, mainly after noon. Patchy fog after 4pm. Otherwise, cloudy, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain. Patchy fog before 9pm. Low around 34. Southwest wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%.
Monday
Rain, possibly mixed with snow before 3pm, then a slight chance of snow. High near 38. North wind around 15 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 29. North wind around 10 mph.
Tuesday
Mostly sunny, with a high near 39. North wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 32. Southwest wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 45. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 32. West wind around 10 mph.
Thursday
Partly sunny, with a high near 43. South wind around 10 mph.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36. Southwest wind 10 to 15 mph. Chance of precipitation is 50%.
Friday
A chance of rain. Partly sunny, with a high near 46. Northwest wind around 14 mph. Chance of precipitation is 40%.
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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:
2:33 am EDT Mar 21, 2026
Forecast Valid:
4am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation