White Marsh, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for White Marsh, a community in Baltimore County, Maryland.
Overnight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. South wind around 2 mph.
7-day forecast for White Marsh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Partly Cloudy | 2 mph S | 1% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 9 mph S | 1% |
| Wednesday Night | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph S | 20% |
| Thursday | 73°F | Chance Rain Showers | 6 to 9 mph S | 51% |
| Thursday Night | 62°F | Rain Showers Likely | 1 to 6 mph SW | 65% |
| Friday | 71°F | Light Rain Likely | 3 mph N | 67% |
| Friday Night | 51°F | Chance Light Rain then Partly Cloudy | 2 to 6 mph NW | 47% |
| Saturday | 65°F | Mostly Sunny | 7 to 12 mph NW | 6% |
| Saturday Night | 43°F | Partly Cloudy | 10 mph NW | 6% |
| Sunday | 61°F | Mostly Sunny | 10 mph NW | 3% |
| Sunday Night | 42°F | Mostly Clear | 7 mph W | 6% |
| Monday | 61°F | Sunny | 7 to 13 mph W | 6% |
| Monday Night | 41°F | Mostly Clear | 3 to 8 mph W | 5% |
| Tuesday | 65°F | Sunny | 5 to 10 mph W | 2% |
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 Nov 4, 2026.