Arlington, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arlington, a community in Middlesex County, Massachusetts.
Today
85°F
Sunny
Sunny, with a high near 85. West wind around 7 mph.
7-day forecast for Arlington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 7 mph W | 0% |
| Tonight | 63°F | Partly Cloudy | 6 mph SW | 2% |
| Wednesday | 85°F | Mostly Sunny | 3 to 7 mph W | 2% |
| Wednesday Night | 68°F | Partly Cloudy | 6 mph SW | 5% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph SW | 17% |
| Thursday Night | 73°F | Slight Chance Rain Showers then Partly Cloudy | 8 mph SW | 22% |
| Friday | 90°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 9 mph SW | 21% |
| Friday Night | 72°F | Chance Rain Showers | 7 mph W | 29% |
| Saturday | 88°F | Mostly Sunny then Chance Rain Showers | 7 mph W | 32% |
| Saturday Night | 71°F | Chance Rain Showers | 6 mph SW | 43% |
| Sunday | 88°F | Mostly Sunny | 5 to 8 mph W | 12% |
| Sunday Night | 71°F | Mostly Clear | 5 to 8 mph SW | 14% |
| Monday | 89°F | Sunny | 5 to 10 mph SW | 9% |
| Monday Night | 70°F | Mostly Clear | 10 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Arlington (42.419, -71.164). Updated through the day.
Growing snapshot for Arlington
Last spring frost
Apr 25
First fall frost
Oct 17
Growing season
174 days
Hardiness zone
6b
More local growing data for Arlington: nearby ZIP 02474 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Reading, Ma (7.3 mi from Arlington). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.