Swartzville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Swartzville, a community in Lancaster County, Pennsylvania.
Overnight
50°F
Patchy Fog
Patchy fog after 5am. Mostly clear, with a low around 50. South wind around 2 mph.
7-day forecast for Swartzville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Patchy Fog | 2 mph S | 0% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 12 mph S | 1% |
| Wednesday Night | 58°F | Mostly Cloudy | 6 to 13 mph S | 13% |
| Thursday | 71°F | Light Rain | 9 to 13 mph S | 82% |
| Thursday Night | 58°F | Light Rain | 1 to 8 mph SW | 77% |
| Friday | 69°F | Light Rain Likely | 0 to 3 mph N | 70% |
| Friday Night | 48°F | Chance Light Rain then Partly Cloudy | 5 mph NW | 33% |
| Saturday | 62°F | Mostly Sunny | 5 to 13 mph W | 12% |
| Saturday Night | 41°F | Partly Cloudy | 12 mph W | 12% |
| Sunday | 59°F | Mostly Sunny | 8 to 13 mph W | 4% |
| Sunday Night | 38°F | Mostly Clear | 9 mph W | 4% |
| Monday | 58°F | Sunny | 9 to 16 mph W | 5% |
| Monday Night | 37°F | Mostly Clear | 6 to 10 mph W | 4% |
| Tuesday | 62°F | Sunny | 6 to 14 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov) for Swartzville (40.229, -76.079). Updated through the day.
Growing snapshot for Swartzville
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a
More local growing data for Swartzville: nearby ZIP 19501 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Blue Marsh Lake, Pa (9.6 mi from Swartzville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.