Harman US

Randallstown, MD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Randallstown, a community in Baltimore County, Maryland.

Overnight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind around 5 mph.

7-day forecast for Randallstown

WhenTempForecastWindPrecip
Overnight 52°F Mostly Clear 5 mph S 1%
Wednesday 74°F Patchy Fog then Mostly Sunny 5 to 9 mph S 1%
Wednesday Night 61°F Mostly Cloudy then Chance Rain Showers 8 mph S 36%
Thursday 72°F Rain Showers Likely 7 to 10 mph S 55%
Thursday Night 61°F Rain Showers Likely 2 to 6 mph W 58%
Friday 69°F Chance Light Rain 3 mph N 58%
Friday Night 49°F Chance Light Rain then Partly Cloudy 2 to 7 mph NW 33%
Saturday 62°F Mostly Sunny 8 to 13 mph NW 6%
Saturday Night 42°F Partly Cloudy 8 to 12 mph NW 6%
Sunday 59°F Mostly Sunny 8 to 12 mph NW 2%
Sunday Night 41°F Mostly Clear 8 mph W 6%
Monday 60°F Sunny 8 to 14 mph W 6%
Monday Night 40°F Mostly Clear 3 to 9 mph W 4%
Tuesday 63°F Sunny 6 to 12 mph W 2%

Forecast source: National Weather Service (api.weather.gov) for Randallstown (39.372, -76.802). Updated through the day.

Growing snapshot for Randallstown

Last spring frost
Apr 2
First fall frost
Nov 7
Growing season
220 days
Hardiness zone
7a

More local growing data for Randallstown: nearby ZIP 21133 weather · frost dates · planting calendar · Maryland frost dates

Nearby towns & communities

All Maryland locations ›

Climate data from the nearest NOAA station, Cylburn, Md (8.6 mi from Randallstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.