Lexington, MA Weather & Growing Conditions
Overnight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. North wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 66°F | Sunny | 5 mph NE | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 62°F | Mostly Cloudy then Rain Showers | 1 to 6 mph SE | 83% |
| Sunday Night | 50°F | Rain Showers | 3 to 7 mph NE | 82% |
| Monday | 66°F | Partly Sunny | 5 to 8 mph N | 13% |
| Monday Night | 46°F | Mostly Cloudy | 1 to 5 mph NE | 0% |
| Tuesday | 61°F | Partly Sunny | 8 mph NE | 1% |
| Tuesday Night | 46°F | Mostly Cloudy | 2 to 7 mph NE | 1% |
| Wednesday | 62°F | Partly Sunny | 7 to 12 mph NE | 2% |
| Wednesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 9 mph NE | 19% |
| Thursday | 61°F | Chance Rain Showers | 10 mph NE | 32% |
| Thursday Night | 47°F | Chance Rain Showers | 8 to 13 mph NE | 34% |
| Friday | 62°F | Chance Rain Showers | 13 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lexington, MA
Last spring frost
Apr 27
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
6b
Explore more for Lexington, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Bedford, Ma (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.