Middle River, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middle River, a community in Baltimore County, Maryland.
Tonight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. North wind around 10 mph.
7-day forecast for Middle River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 10 mph N | 2% |
| Saturday | 78°F | Mostly Sunny | 10 mph NE | 5% |
| Saturday Night | 66°F | Mostly Cloudy then Isolated Rain Showers | 10 mph SE | 20% |
| Sunday | 81°F | Chance Rain Showers | 9 to 15 mph S | 51% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 7 to 12 mph W | 70% |
| Monday | 74°F | Chance Rain Showers | 9 to 13 mph NE | 43% |
| Monday Night | 60°F | Chance Rain Showers | 10 mph NE | 45% |
| Tuesday | 68°F | Chance Rain Showers | 12 to 16 mph NE | 51% |
| Tuesday Night | 56°F | Chance Rain Showers | 12 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 | 10 to 15 mph NE | 45% |
| Thursday | 67°F | Chance Showers And Thunderstorms | 15 mph NE | 38% |
| Thursday Night | 56°F | Chance Showers And Thunderstorms | 6 to 13 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 Middle River (39.340, -76.429). Updated through the day.
Growing snapshot for Middle River
Last spring frost
Mar 24
First fall frost
Nov 21
Growing season
244 days
Hardiness zone
8a
More local growing data for Middle River: nearby ZIP 21220 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Md Sci Ctr Baltimore, Md (12.4 mi from Middle River). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.