Overlea, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Overlea, a community in Baltimore County, Maryland.
This Afternoon
85°F
Mostly Sunny
Mostly sunny, with a high near 85. North wind around 10 mph.
7-day forecast for Overlea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Mostly Sunny | 10 mph N | 10% |
| Tonight | 61°F | Partly Cloudy | 10 mph N | 10% |
| Saturday | 79°F | Mostly Sunny | 10 mph NE | 5% |
| Saturday Night | 67°F | Mostly Cloudy then Scattered Rain Showers | 9 mph SE | 30% |
| 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 | 42% |
| Monday Night | 61°F | Chance Rain Showers | 12 mph NE | 46% |
| Tuesday | 68°F | Chance Rain Showers | 12 to 16 mph NE | 51% |
| Tuesday Night | 57°F | Chance Rain Showers | 13 to 16 mph NE | 51% |
| Wednesday | 65°F | Chance Rain Showers | 13 to 16 mph NE | 45% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 12 to 16 mph NE | 45% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 14 mph NE | 40% |
| Thursday Night | 56°F | Chance Showers And Thunderstorms | 7 to 12 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov) for Overlea (39.364, -76.518). Updated through the day.
Growing snapshot for Overlea
Last spring frost
Mar 24
First fall frost
Nov 21
Growing season
244 days
Hardiness zone
8a
More local growing data for Overlea: nearby ZIP 21237 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Arbutus
Bowleys Quarters
Carney
Catonsville
Cockeysville
Dundalk
Edgemere
Essex
Garrison
Hampton
Honeygo
Kingsville
Lansdowne
Lochearn
Lutherville
Mays Chapel
Middle River
Milford Mill
Owings Mills
Parkville
Perry Hall
Pikesville
Pleasant Hills
Randallstown
Reisterstown
Rosedale
Rossville
Timonium
Towson
White Marsh
Climate data from the nearest NOAA station, Md Sci Ctr Baltimore, Md (7.4 mi from Overlea). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.