Marlborough, MA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Marlborough, a city in Middlesex County, Massachusetts.

Today

83°F

Sunny

Sunny, with a high near 83. West wind around 5 mph.

7-day forecast for Marlborough

When	Temp	Forecast	Wind	Precip
Today	83°F	Sunny	5 mph W	0%
Tonight	60°F	Partly Cloudy	5 mph SW	1%
Wednesday	83°F	Mostly Sunny	2 to 6 mph W	2%
Wednesday Night	66°F	Partly Cloudy	5 mph SW	6%
Thursday	87°F	Mostly Sunny then Chance Rain Showers	3 to 7 mph SW	27%
Thursday Night	70°F	Chance Rain Showers then Partly Cloudy	6 mph SW	35%
Friday	88°F	Mostly Sunny then Slight Chance Rain Showers	3 to 7 mph SW	20%
Friday Night	69°F	Chance Rain Showers then Partly Cloudy	6 mph W	28%
Saturday	86°F	Mostly Sunny then Chance Rain Showers	6 mph W	31%
Saturday Night	68°F	Chance Rain Showers	5 mph W	42%
Sunday	87°F	Mostly Sunny	3 to 7 mph W	12%
Sunday Night	68°F	Mostly Clear	6 mph SW	14%
Monday	88°F	Sunny	5 to 9 mph W	10%
Monday Night	67°F	Mostly Clear	8 mph W	12%

Forecast source: National Weather Service (api.weather.gov) for Marlborough (42.350, -71.547). Updated through the day.

Growing snapshot for Marlborough

Last spring frost

May 2

First fall frost

Oct 6

Growing season

156 days

Hardiness zone

More local growing data for Marlborough: nearby ZIP 01752 weather · frost dates · planting calendar · Massachusetts frost dates

Nearby towns & communities

Arlington Ayer Belmont Burlington Cochituate East Pepperell Everett Framingham Groton Hanscom AFB Hopkinton Hudson Lexington Littleton Common Lowell Malden Maynard Medford Melrose Newton Pepperell Pinehurst Reading Shirley Somerville Stoneham Townsend Wakefield Waltham Watertown Town

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Climate data from the nearest NOAA station, Maynard 2, Ma (7.7 mi from Marlborough). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.