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Preston, MD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Preston, a town in Caroline County, Maryland.

Tonight
51°F
Mostly Clear
Mostly clear, with a low around 51. South wind around 6 mph.

7-day forecast for Preston

WhenTempForecastWindPrecip
Tonight 51°F Mostly Clear 6 mph S 2%
Wednesday 77°F Patchy Fog then Sunny 3 to 9 mph S 3%
Wednesday Night 60°F Mostly Cloudy 8 mph S 4%
Thursday 75°F Slight Chance Light Rain 8 to 12 mph S 16%
Thursday Night 63°F Light Rain 8 mph S 89%
Friday 70°F Light Rain 5 to 8 mph SW 89%
Friday Night 53°F Chance Light Rain 3 mph W 84%
Saturday 66°F Slight Chance Light Rain then Mostly Sunny 5 to 9 mph NW 18%
Saturday Night 43°F Partly Cloudy 6 mph NW 10%
Sunday 61°F Mostly Sunny 3 to 7 mph NW 6%
Sunday Night 43°F Partly Cloudy then Slight Chance Light Rain 2 to 6 mph W 17%
Monday 61°F Slight Chance Light Rain 6 to 12 mph W 20%
Monday Night 41°F Slight Chance Light Rain 6 mph W 20%
Tuesday 63°F Slight Chance Light Rain then Sunny 6 to 10 mph W 15%

Forecast source: National Weather Service (api.weather.gov) for Preston (38.710, -75.908). Updated through the day.

Growing snapshot for Preston

Last spring frost
Apr 1
First fall frost
Nov 7
Growing season
220 days
Hardiness zone
7b

More local growing data for Preston: nearby ZIP 21655 weather · frost dates · planting calendar · Maryland frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Royal Oak 2 Ssw, Md (15.1 mi from Preston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.