Bel Air, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bel Air, a town in Harford County, Maryland.
Overnight
63°F
Mostly Cloudy
Mostly cloudy, with a low around 63. North wind around 5 mph.
7-day forecast for Bel Air
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 85°F | Partly Sunny | 5 mph NE | 0% |
| Tuesday Night | 67°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 1 to 5 mph E | 18% |
| Wednesday | 84°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 70% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 40% |
| Thursday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 35% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 38% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 44% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 47% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph SW | 44% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 5 mph W | 44% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 16% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 16% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Bel Air (39.535, -76.346). Updated through the day.
Growing snapshot for Bel Air
Last spring frost
Apr 10
First fall frost
Oct 30
Growing season
201 days
Hardiness zone
7b
More local growing data for Bel Air: nearby ZIP 21014 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Aberdeen
Aberdeen Proving Ground
Abingdon
Bel Air North
Bel Air South
Darlington
Edgewood
Fallston
Havre de Grace
Jarrettsville
Joppatowne
Perryman
Pylesville
Riverside
Climate data from the nearest NOAA station, Aberdeen Phillips Fld, Md (10.7 mi from Bel Air). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.