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Acton, MA Weather Forecast

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Acton, MA Weather Forecast

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Acton MA weather - Clear - 46°F
Clear
46°F
Updated 11:56 pm
Feels Like 49°F
Humidity 95%
Wind N 0 mph
Barometer  30.2 in
Dew Point 45°F
Acton MA weather - Clear - 8°C
Clear
8°C
Updated 11:56 pm
Feels Like 9°C
Humidity 95%
Wind N 0 km/h
Barometer  102.3 kPa
Dew Point 7°C
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Acton Weather Forecast

OVERNIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY THURSDAY THURSDAY NIGHT FRIDAY SATURDAY
Acton, MA Weather - Overnight Partly Cloudy Acton, MA Weather - Sunday Chance Of Showers Acton, MA Weather - Sunday Night Showers Acton, MA Weather - Monday Partly Sunny Acton, MA Weather - Monday Night Mostly Cloudy Acton, MA Weather - Tuesday Partly Sunny Acton, MA Weather - Tuesday Night Partly Cloudy Acton, MA Weather - Wednesday Mostly Cloudy Acton, MA Weather - Thursday Mostly Cloudy Acton, MA Weather - Thursday Night Chance Of Showers Acton, MA Weather - Friday Chance Of Showers Acton, MA Weather - Saturday Chance Of Showers
Partly Cloudy Chance of Showers Showers Partly Sunny Mostly Cloudy Partly Sunny Partly Cloudy Mostly Cloudy Mostly Cloudy Chance of Showers Chance of Showers Chance of Showers
Lo: 41°FLo: 5°C Hi: 60°FHi: 16°C
 Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
 Lo: 49°FLo: 9°C Hi: 61°FHi: 16°C
 Lo: 45°FLo: 7°C Hi: 61°FHi: 16°C
Lo: 45°FLo: 7°C		 Hi: 61°FHi: 16°C
Lo: 45°FLo: 7°C		 Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C		 Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C		 Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C
POP: 100% POP: 100% POP: 40% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1003 PM EDT Sat Sep 19 2026 Acton, MA Weather - WeatherWorld.com

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Issued: 729 PM EDT Sat Sep 19 2026

Key Messages

  • Quiet through the rest of today, cooler tonight, with clouds returning before sunrise.
  • Briefly dry early to mid morning, then beneficial rain overspreads southern New England and continues through the evening and overnight hours. Flooding concerns remain low.
  • High pressure Tuesday gives way to a coastal system for the second half of the week

Discussion

... KEY MESSAGE 1...Quiet through the rest of today, cooler tonight, with clouds returning before sunrise.

A 1020-1025 mb high pressure ...