Ashton-Sandy Spring, MD Weather & Growing Conditions
Tonight
59°F
Mostly Cloudy
Mostly cloudy, with a low around 59. Northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Cloudy | 9 mph NE | 2% |
| Saturday | 77°F | Partly Sunny | 9 mph E | 5% |
| Saturday Night | 65°F | Mostly Cloudy then Isolated Rain Showers | 8 mph SE | 20% |
| Sunday | 81°F | Chance Rain Showers | 7 to 13 mph S | 52% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 5 to 9 mph W | 69% |
| Monday | 72°F | Chance Rain Showers | 8 to 12 mph NE | 41% |
| Monday Night | 59°F | Chance Rain Showers | 7 to 12 mph NE | 52% |
| Tuesday | 64°F | Rain Showers Likely | 13 mph NE | 56% |
| Tuesday Night | 54°F | Rain Showers Likely | 13 mph NE | 56% |
| Wednesday | 60°F | Chance Rain Showers | 14 mph NE | 50% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 12 mph NE | 50% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 12 mph NE | 45% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 35% |
| Friday | 67°F | Slight Chance Rain Showers | 9 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ashton-Sandy Spring, MD
Last spring frost
Apr 5
First fall frost
Nov 9
Growing season
218 days
Hardiness zone
7b
Explore more for Ashton-Sandy Spring, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Laurel 3 W, Md (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.