Bartonsville, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bartonsville, a community in Frederick County, Maryland.
This Afternoon
82°F
Sunny
Sunny, with a high near 82. North wind around 10 mph.
7-day forecast for Bartonsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 10 mph N | 10% |
| Tonight | 57°F | Partly Cloudy | 9 mph N | 10% |
| Saturday | 77°F | Partly Sunny | 9 mph E | 5% |
| Saturday Night | 66°F | Mostly Cloudy then Scattered Rain Showers | 6 to 9 mph SE | 30% |
| Sunday | 80°F | Rain Showers Likely | 8 to 14 mph S | 70% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 3 to 10 mph NW | 70% |
| Monday | 71°F | Chance Rain Showers | 8 to 13 mph NE | 39% |
| Monday Night | 59°F | Rain Showers Likely | 7 to 10 mph NE | 55% |
| Tuesday | 63°F | Rain Showers Likely | 12 mph NE | 66% |
| Tuesday Night | 53°F | Rain Showers Likely | 12 mph NE | 66% |
| Wednesday | 59°F | Rain Showers Likely | 12 mph NE | 55% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 51% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 50% |
| Thursday Night | 53°F | Chance Rain Showers | 3 to 7 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for Bartonsville (39.389, -77.353). Updated through the day.
Growing snapshot for Bartonsville
Last spring frost
Apr 2
First fall frost
Nov 6
Growing season
218 days
Hardiness zone
7a
More local growing data for Bartonsville: nearby ZIP 21704 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Frederick Police Brks, Md (5.4 mi from Bartonsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.