Kemp Mill, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kemp Mill, a community in Montgomery County, Maryland.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 7 mph.
7-day forecast for Kemp Mill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 7 mph S | 2% |
| Tonight | 52°F | Mostly Clear then Patchy Fog | 1 to 5 mph S | 2% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 8 mph S | 3% |
| Wednesday Night | 59°F | Mostly Cloudy then Chance Light Rain | 7 mph S | 25% |
| Thursday | 73°F | Chance Light Rain | 6 to 9 mph S | 53% |
| Thursday Night | 60°F | Light Rain Likely | 5 mph S | 70% |
| Friday | 70°F | Light Rain | 2 to 6 mph SW | 75% |
| Friday Night | 52°F | Light Rain Likely | 5 mph NW | 64% |
| Saturday | 67°F | Partly Sunny | 8 mph NW | 14% |
| Saturday Night | 45°F | Partly Cloudy | 5 mph NW | 11% |
| Sunday | 62°F | Mostly Sunny | 6 mph NW | 8% |
| Sunday Night | 44°F | Chance Light Rain | 2 to 6 mph NW | 26% |
| Monday | 59°F | Chance Light Rain | 6 to 12 mph NW | 26% |
| Monday Night | 41°F | Slight Chance Light Rain | 9 mph NW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Kemp Mill (39.041, -77.022). Updated through the day.
Growing snapshot for Kemp Mill
Last spring frost
Apr 10
First fall frost
Nov 1
Growing season
202 days
Hardiness zone
7b
More local growing data for Kemp Mill: nearby ZIP 20902 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Beltsville, Md (6 mi from Kemp Mill). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.