Bel Air South, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bel Air South, a community in Harford County, Maryland.
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. South wind around 9 mph.
7-day forecast for Bel Air South
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 9 mph S | 1% |
| Tonight | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph S | 17% |
| Thursday | 72°F | Chance Rain Showers | 9 mph S | 53% |
| Thursday Night | 61°F | Rain Showers Likely | 2 to 7 mph SW | 67% |
| Friday | 70°F | Light Rain Likely | 3 mph N | 68% |
| Friday Night | 50°F | Chance Light Rain then Partly Cloudy | 2 to 7 mph NW | 50% |
| Saturday | 64°F | Mostly Sunny | 7 to 10 mph NW | 7% |
| Saturday Night | 42°F | Partly Cloudy | 9 mph NW | 7% |
| Sunday | 61°F | Mostly Sunny | 7 to 10 mph NW | 3% |
| Sunday Night | 41°F | Mostly Clear | 8 mph W | 6% |
| Monday | 60°F | Sunny | 9 to 14 mph W | 6% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph W | 4% |
| Tuesday | 64°F | Sunny | 6 to 10 mph W | 1% |
| Tuesday Night | 40°F | Mostly Clear | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bel Air South (39.508, -76.309). Updated through the day.
Growing snapshot for Bel Air South
Last spring frost
Apr 10
First fall frost
Oct 30
Growing season
201 days
Hardiness zone
7b
More local growing data for Bel Air South: nearby ZIP 21015 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Aberdeen
Aberdeen Proving Ground
Abingdon
Bel Air
Bel Air North
Darlington
Edgewood
Fallston
Havre de Grace
Jarrettsville
Joppatowne
Perryman
Pylesville
Riverside
Climate data from the nearest NOAA station, Aberdeen Phillips Fld, Md (8.2 mi from Bel Air South). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.