Lewistown, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewistown, a community in Frederick County, Maryland.
Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. South wind around 5 mph.
7-day forecast for Lewistown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Clear | 5 mph S | 1% |
| Wednesday | 74°F | Mostly Sunny | 3 to 12 mph S | 2% |
| Wednesday Night | 64°F | Mostly Cloudy then Light Rain | 7 to 10 mph S | 80% |
| Thursday | 74°F | Light Rain | 6 to 12 mph S | 78% |
| Thursday Night | 63°F | Light Rain Likely | 1 to 5 mph SW | 55% |
| Friday | 70°F | Chance Light Rain | 2 mph NW | 54% |
| Friday Night | 51°F | Chance Light Rain | 3 mph NW | 46% |
| Saturday | 64°F | Mostly Sunny | 5 to 12 mph NW | 13% |
| Saturday Night | 43°F | Partly Cloudy | 3 to 9 mph NW | 13% |
| Sunday | 61°F | Mostly Sunny | 3 to 8 mph W | 7% |
| Sunday Night | 42°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 21% |
| Monday | 60°F | Slight Chance Light Rain | 7 to 15 mph NW | 22% |
| Monday Night | 40°F | Slight Chance Light Rain | 5 to 8 mph W | 22% |
| Tuesday | 64°F | Sunny | 5 to 13 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov) for Lewistown (39.540, -77.421). Updated through the day.
Growing snapshot for Lewistown
Last spring frost
Apr 14
First fall frost
Oct 30
Growing season
197 days
Hardiness zone
7a
More local growing data for Lewistown: nearby ZIP 21788 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Catoctin Mtn Park, Md (5.3 mi from Lewistown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.