Havre de Grace, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Havre de Grace, a city in Harford County, Maryland.
Today
75°F
Patchy Fog then Mostly Sunny
Patchy fog before 9am. Mostly sunny. High near 75, with temperatures falling to around 69 in the afternoon. South wind 2 to 8 mph.
7-day forecast for Havre de Grace
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Fog then Mostly Sunny | 2 to 8 mph S | 2% |
| Tonight | 60°F | Mostly Cloudy | 6 mph S | 11% |
| Thursday | 73°F | Chance Rain Showers | 6 to 9 mph S | 52% |
| Thursday Night | 61°F | Rain Showers Likely | 2 to 6 mph SW | 72% |
| Friday | 72°F | Light Rain Likely | 3 mph N | 74% |
| Friday Night | 50°F | Light Rain Likely | 1 to 6 mph NW | 59% |
| Saturday | 66°F | Mostly Sunny | 6 to 9 mph NW | 8% |
| Saturday Night | 43°F | Partly Cloudy | 8 mph W | 8% |
| Sunday | 63°F | Mostly Sunny | 6 to 9 mph NW | 4% |
| Sunday Night | 41°F | Mostly Clear | 7 mph W | 7% |
| Monday | 61°F | Sunny | 7 to 12 mph W | 7% |
| Monday Night | 40°F | Mostly Clear | 3 to 7 mph W | 4% |
| Tuesday | 66°F | Sunny | 5 to 9 mph W | 2% |
| Tuesday Night | 41°F | Mostly Clear | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Havre de Grace (39.547, -76.114). Updated through the day.
Growing snapshot for Havre de Grace
Last spring frost
Apr 10
First fall frost
Oct 30
Growing season
201 days
Hardiness zone
7b
More local growing data for Havre de Grace: nearby ZIP 21078 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Aberdeen
Aberdeen Proving Ground
Abingdon
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Bel Air South
Darlington
Edgewood
Fallston
Jarrettsville
Joppatowne
Perryman
Pylesville
Riverside
Climate data from the nearest NOAA station, Aberdeen Phillips Fld, Md (6.2 mi from Havre de Grace). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.