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.

Mostly Cloudy

66°F

19°C

Humidity 94%
Wind Speed N 6 mph
Barometer 30.03 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 18 Sep 6:45 am EDT
Extended Forecast for

Osterville MA

  • Today

    Today: A slight chance of showers before 7am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Light north wind increasing to 6 to 11 mph in the evening.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 63. Northeast wind 7 to 10 mph.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Light southeast wind.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 66. Southeast wind 5 to 8 mph. Chance of precipitation is 40%.

    High: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, with thunderstorms also possible after 2am. Patchy fog after 9pm. Low around 58. East wind 3 to 5 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers. The rain could be heavy at times. Partly sunny, with a high near 66. Northeast wind 9 to 13 mph. Chance of precipitation is 40%.

    High: 66 °F

    Heavy Rain

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 57. Northeast wind 10 to 14 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 63. Northeast wind around 17 mph. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers before 7am. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 56. Light north wind increasing to 6 to 11 mph in the evening.
Saturday
Mostly sunny, with a high near 63. Northeast wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 54. Light southeast wind.
Sunday
A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 66. Southeast wind 5 to 8 mph. Chance of precipitation is 40%.
Sunday Night
Showers, with thunderstorms also possible after 2am. Patchy fog after 9pm. Low around 58. East wind 3 to 5 mph. Chance of precipitation is 80%.
Monday
A chance of showers. The rain could be heavy at times. Partly sunny, with a high near 66. Northeast wind 9 to 13 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Northeast wind 10 to 14 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 63. Northeast wind around 17 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 10pm. Mostly cloudy, with a low around 56. Northeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 63. Breezy, with a northeast wind around 21 mph, with gusts as high as 33 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 64. Breezy, with a northeast wind 17 to 20 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Osterville MA
 41.63°N 70.41°W (Elev. 3 ft)
Last Update:
3:02 am EDT Sep 18, 2026
Forecast Valid:
6am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation