Lexington, MA Weather & Growing Conditions
Today
76°F
Sunny
Sunny. High near 76, with temperatures falling to around 68 in the afternoon. Southwest wind 6 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Sunny | 6 to 9 mph SW | 3% |
| Tonight | 58°F | Partly Cloudy | 8 mph SW | 2% |
| Thursday | 75°F | Mostly Cloudy | 7 to 12 mph SW | 8% |
| Thursday Night | 61°F | Mostly Cloudy then Chance Light Rain | 6 to 9 mph SW | 40% |
| Friday | 70°F | Light Rain | 5 mph S | 90% |
| Friday Night | 56°F | Light Rain | 5 mph S | 94% |
| Saturday | 65°F | Light Rain Likely | 6 mph N | 66% |
| Saturday Night | 45°F | Chance Light Rain | 5 to 8 mph NW | 26% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 9 mph W | 22% |
| Sunday Night | 38°F | Partly Cloudy | 6 mph W | 6% |
| Monday | 56°F | Mostly Sunny then Slight Chance Light Rain | 6 to 10 mph W | 17% |
| Monday Night | 36°F | Partly Cloudy | 8 mph W | 14% |
| Tuesday | 58°F | Mostly Sunny | 10 mph SW | 7% |
| Tuesday Night | 37°F | Partly Cloudy | 8 mph W | 6% |
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 Nov 4, 2026.