Flower Hill, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Flower Hill, a community in Montgomery County, Maryland.
Overnight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. Northeast wind around 8 mph.
7-day forecast for Flower Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Partly Cloudy | 8 mph NE | 0% |
| Saturday | 77°F | Mostly Sunny | 5 to 8 mph E | 6% |
| Saturday Night | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph SE | 18% |
| Sunday | 82°F | Chance Rain Showers | 7 to 10 mph S | 41% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 3 to 12 mph W | 68% |
| Monday | 70°F | Chance Rain Showers | 7 to 12 mph N | 35% |
| Monday Night | 55°F | Chance Rain Showers | 6 to 10 mph NE | 44% |
| Tuesday | 63°F | Rain Showers Likely | 13 mph NE | 60% |
| Tuesday Night | 52°F | Rain Showers Likely | 14 mph NE | 60% |
| Wednesday | 59°F | Chance Rain Showers | 14 mph NE | 48% |
| Wednesday Night | 52°F | Chance Rain Showers | 13 mph NE | 46% |
| Thursday | 61°F | Chance Rain Showers | 14 mph NE | 46% |
| Thursday Night | 51°F | Chance Rain Showers | 6 to 10 mph NE | 37% |
| Friday | 66°F | Slight Chance Rain Showers | 10 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov) for Flower Hill (39.168, -77.184). Updated through the day.
Growing snapshot for Flower Hill
Last spring frost
Apr 1
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
7b
More local growing data for Flower Hill: nearby ZIP 20879 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Rockville 1 Ne, Md (4.7 mi from Flower Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.