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Onset, MA 7-Day Night Weather Forecast
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Onset, MA Weather Forecast
Onset, MA Weather Forecast Date: 702 PM EST Thu Nov 05 2026
The area/counties/county of: Southern Plymouth County Ma, including the city of Mattapoisett.or toggle through each period.
Tonight... Mostly cloudy. Rain likely with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Near steady temperature in the mid 60s. Southwest winds around 10 mph with gusts up to 25 mph. Chance of rain 70%.
Friday... Rain with a chance of thunderstorms. Patchy fog. Rain May be heavy at times in the afternoon. Highs in the upper 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100%.
Friday Night... Rain with a chance of thunderstorms in the evening, then rain after midnight. Patchy fog. Lows in the upper 50s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 90%.
Saturday... Showers likely. Highs in the mid 60s. North winds 5 to 10 mph. Chance of rain 70%.
Saturday Night... Showers likely. Cooler with lows in the mid 40s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70%.
Sunday... Partly sunny with a 50% chance of showers. Highs around 60.
Sunday Night... Mostly clear. Lows in the upper 30s. Highs in the upper 50s.
Monday... Mostly clear. Lows in the upper 30s. Highs in the upper 50s.
Tuesday... Mostly sunny. Highs in the lower 60s.
Tuesday Night... Mostly clear. Lows around 40. Highs in the upper 50s.
Veterans Day... Mostly clear. Lows around 40. Highs in the upper 50s.
Wednesday Night... Partly cloudy. Lows in the lower 30s.
POP = Probability of Precipitation
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