Ayer, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ayer, a community in Middlesex County, Massachusetts.
Tonight
50°F
Partly Cloudy
Partly cloudy, with a low around 50. Southwest wind around 5 mph.
7-day forecast for Ayer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Partly Cloudy | 5 mph SW | 3% |
| Wednesday | 76°F | Mostly Sunny | 3 to 9 mph SW | 5% |
| Wednesday Night | 54°F | Partly Cloudy | 6 mph SW | 2% |
| Thursday | 74°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph SW | 26% |
| Thursday Night | 61°F | Chance Light Rain | 2 to 7 mph SW | 54% |
| Friday | 70°F | Rain | 3 mph S | 82% |
| Friday Night | 54°F | Rain | 2 mph E | 83% |
| Saturday | 64°F | Light Rain Likely | 6 mph NW | 70% |
| Saturday Night | 42°F | Chance Light Rain | 3 mph NW | 47% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 7 mph W | 24% |
| Sunday Night | 35°F | Partly Cloudy | 3 mph W | 10% |
| Monday | 58°F | Mostly Sunny then Slight Chance Light Rain | 5 to 9 mph W | 20% |
| Monday Night | 34°F | Slight Chance Light Rain | 6 mph W | 20% |
| Tuesday | 58°F | Mostly Sunny | 6 to 10 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Ayer (42.562, -71.585). Updated through the day.
Growing snapshot for Ayer
Last spring frost
Apr 29
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
6a
More local growing data for Ayer: nearby ZIP 01432 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
Arlington
Belmont
Burlington
Cochituate
East Pepperell
Everett
Framingham
Groton
Hanscom AFB
Hopkinton
Hudson
Lexington
Littleton Common
Lowell
Malden
Marlborough
Maynard
Medford
Melrose
Newton
Pepperell
Pinehurst
Reading
Shirley
Somerville
Stoneham
Townsend
Wakefield
Waltham
Watertown Town
Climate data from the nearest NOAA station, Fitchburg Muni Ap, Ma (9.3 mi from Ayer). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.