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Groton Dunstable Regional High School, MA Weather Forecast
Groton Dunstable Regional High School, MA Weather Forecast Date: 102 AM EDT Tue Aug 18 2026
The area/counties/county of: Northern Middlesex County Ma, including the city of Ayer.or toggle through each period.
Rest of Tonight... Mostly cloudy. Patchy fog. Near steady temperature in the mid 60s. Light and variable winds.
Tuesday... Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Patchy fog in the morning. Humid with highs in the lower 80s. Light and variable winds, becoming north around 5 mph in the afternoon. Chance of rain 20%.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog after midnight. Humid with lows in the lower 60s. Light and variable winds.
Wednesday... Mostly sunny. Patchy fog. Highs in the mid 80s. West winds around 5 mph.
Wednesday Night... Mostly clear. Lows in the lower 60s. West winds around 5 mph.
Thursday... Partly cloudy. A 30% chance of showers. Highs in the lower 80s. Lows in the upper 50s.
Thursday Night... Partly cloudy. A 30% chance of showers. Highs in the lower 80s. Lows in the upper 50s.
Friday... Partly cloudy. Highs in the lower 80s. Lows in the upper 50s.
Friday Night... Partly cloudy. Highs in the lower 80s. Lows in the upper 50s.
Saturday... Partly sunny with a 30% chance of showers. Highs in the upper 70s.
Saturday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
Sunday... Showers likely. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 60%.
Sunday Night... Showers likely. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 60%.
POP = Probability of Precipitation
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