White Marsh, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for White Marsh, a community in Baltimore County, Maryland.
Tonight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. North wind around 9 mph.
7-day forecast for White Marsh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 9 mph N | 2% |
| Saturday | 78°F | Mostly Sunny | 10 mph NE | 5% |
| Saturday Night | 66°F | Mostly Cloudy then Isolated Rain Showers | 9 mph SE | 20% |
| Sunday | 81°F | Rain Showers Likely | 8 to 14 mph S | 55% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 6 to 10 mph W | 70% |
| Monday | 74°F | Chance Rain Showers | 12 mph NE | 43% |
| Monday Night | 61°F | Chance Rain Showers | 10 mph NE | 45% |
| Tuesday | 67°F | Chance Rain Showers | 12 to 16 mph NE | 50% |
| Tuesday Night | 56°F | Chance Rain Showers | 12 to 16 mph NE | 50% |
| Wednesday | 65°F | Chance Rain Showers | 13 to 16 mph NE | 44% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 44% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 14 mph NE | 39% |
| Thursday Night | 55°F | Chance Showers And Thunderstorms | 6 to 12 mph N | 35% |
| Friday | 70°F | Slight Chance Rain Showers | 8 to 12 mph N | 23% |
Forecast source: National Weather Service (api.weather.gov) for White Marsh (39.382, -76.458). Updated through the day.
Growing snapshot for White Marsh
Last spring frost
Apr 2
First fall frost
Nov 7
Growing season
220 days
Hardiness zone
7b
More local growing data for White Marsh: nearby ZIP 21128 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Cylburn, Md (11.5 mi from White Marsh). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.