St. Lawrence, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Lawrence, a borough in Berks County, Pennsylvania.
Overnight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. Northeast wind around 5 mph.
7-day forecast for St. Lawrence
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Partly Cloudy | 5 mph NE | 0% |
| Saturday | 73°F | Mostly Sunny | 5 mph E | 2% |
| Saturday Night | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 45% |
| Sunday | 73°F | Rain Showers | 5 to 10 mph S | 89% |
| Sunday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph NW | 89% |
| Monday | 68°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Tuesday | 62°F | Chance Rain Showers | 15 mph NE | 41% |
| Tuesday Night | 51°F | Chance Rain Showers | 15 mph NE | 41% |
| Wednesday | 61°F | Chance Rain Showers | 15 mph NE | 38% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 15 mph NE | 41% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 38% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 33% |
| Friday | 68°F | Chance Rain Showers | 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for St. Lawrence (40.326, -75.864). Updated through the day.
Growing snapshot for St. Lawrence
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
197 days
Hardiness zone
7a
More local growing data for St. Lawrence: nearby ZIP 19606 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Blandon
Bowers
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Centerport
Colony Park
Dauberville
Douglassville
Dryville
Edenburg
Fleetwood
Flying Hills
Fox Chase
Frystown
Gibraltar
Gouglersville
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Hamburg
Hereford
Hyde Park
Jacksonwald
Climate data from the nearest NOAA station, Reading Spaatz Fld, Pa (6.1 mi from St. Lawrence). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.