Lexington, MA Weather & Growing Conditions
Today
65°F
Mostly Sunny
Mostly sunny, with a high near 65. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Mostly Sunny | 5 mph NE | 0% |
| Tonight | 47°F | Partly Cloudy | 1 to 5 mph S | 0% |
| Sunday | 63°F | Mostly Cloudy then Rain Showers | 2 to 6 mph SE | 83% |
| Sunday Night | 51°F | Rain Showers | 5 to 8 mph NE | 82% |
| Monday | 65°F | Partly Sunny | 6 to 9 mph NE | 14% |
| Monday Night | 48°F | Mostly Cloudy | 2 to 7 mph NE | 1% |
| Tuesday | 61°F | Partly Sunny | 9 mph NE | 2% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 to 8 mph NE | 2% |
| Wednesday | 62°F | Partly Sunny | 8 to 13 mph NE | 2% |
| Wednesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 10 mph NE | 19% |
| Thursday | 61°F | Chance Rain Showers | 9 to 13 mph NE | 32% |
| Thursday Night | 48°F | Chance Rain Showers | 13 mph NE | 35% |
| Friday | 61°F | Chance Rain Showers | 13 mph N | 35% |
| Friday Night | 49°F | Chance Rain Showers | 10 to 14 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lexington, MA
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
165 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 Hanscom Fld, Ma (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.