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Onset Weather Warning NWS WEATHER ALERT FOR THE ONSET, MA AREA - FLOOD WATCH Issued: 1137 AM EST Thu Nov 5 2026 Onset Weather Warning

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Weather for Onset, MAOnset, MA Weather & Current Conditions

02558 Weather (Onset, MA)

Onset, MA WeatherCurrent Conditions and Weather for Onset, Massachusetts
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Overcast at Onset (02558), temperature is 66°F19°C, dew point 64°F18°C, humidity 93%. Wind direction is SSW at 8 mphat 13 km/h with visibility of 10 mi16 km. Barometric pressure is 29.91 in1013 mb. Last update: 8:46 pm.*
*Time is approximately 8:46 pm Thu, Nov 05, 2026. Time will be within 15 minutes of current local time. Onset weather forecast data is updated every 15 minutes.

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Onset MA Weather - 8:46 pm

Onset Weather Forecast

Weather forecast for: Onset MA
Last Update: 6:39 pm EST Nov 5, 2026
Tonight: A slight chance of rain before 1am, then a chance of rain and thunderstorms between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog. High near 67. South wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Friday Night: Rain and possibly a thunderstorm before 1am, then rain between 1am and 4am, then rain and possibly a thunderstorm after 4am. Patchy fog. Low around 57. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday: Showers likely before 10am, then a chance of showers after 11am. Mostly cloudy, with a high near 63. North wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night: Showers likely, mainly between midnight and 5am. Mostly cloudy, with a low around 45. Light and variable wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday: A chance of showers, mainly before 8am. Partly sunny, with a high near 60. Northwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunday Night: Mostly clear, with a low around 41. West wind 7 to 9 mph.
Monday: Sunny, with a high near 57. West wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night: Mostly clear, with a low around 38. West wind 6 to 8 mph.
Tuesday: Mostly sunny, with a high near 61. Southwest wind 7 to 15 mph, with gusts as high as 25 mph.
Tuesday Night: Mostly clear, with a low around 41. West wind 6 to 8 mph.
Veterans Day: Sunny, with a high near 57. West wind 8 to 10 mph.
Wednesday Night: Partly cloudy, with a low around 34. Northwest wind 3 to 5 mph.
Thursday: Sunny, with a high near 53. West wind 5 to 7 mph.

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