Ayer, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ayer, a community in Middlesex County, Massachusetts.
Today
76°F
Sunny
Sunny. High near 76, with temperatures falling to around 67 in the afternoon. Southwest wind 3 to 8 mph.
7-day forecast for Ayer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Sunny | 3 to 8 mph SW | 3% |
| Tonight | 57°F | Partly Cloudy | 6 mph SW | 2% |
| Thursday | 74°F | Mostly Cloudy | 5 to 10 mph SW | 14% |
| Thursday Night | 60°F | Chance Light Rain | 2 to 7 mph SW | 45% |
| Friday | 71°F | Light Rain | 3 mph S | 83% |
| Friday Night | 54°F | Light Rain | 1 mph SE | 90% |
| Saturday | 65°F | Light Rain Likely | 5 mph N | 64% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 28% |
| Sunday | 58°F | Slight Chance Light Rain then Mostly Sunny | 7 mph W | 24% |
| Sunday Night | 35°F | Partly Cloudy | 3 mph W | 6% |
| Monday | 55°F | Mostly Sunny | 3 to 9 mph W | 14% |
| Monday Night | 33°F | Partly Cloudy | 6 mph W | 12% |
| Tuesday | 58°F | Mostly Sunny | 5 to 9 mph SW | 7% |
| Tuesday Night | 33°F | Partly Cloudy | 6 mph W | 7% |
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
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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.