Chalfont, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chalfont, a borough in Bucks County, Pennsylvania.
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. Northeast wind around 5 mph.
7-day forecast for Chalfont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 5 mph NE | 0% |
| Saturday | 73°F | Mostly Sunny | 5 to 10 mph E | 1% |
| Saturday Night | 60°F | Patchy Fog | 5 mph E | 27% |
| Sunday | 74°F | Showers And Thunderstorms | 5 to 10 mph S | 84% |
| Sunday Night | 60°F | Patchy Fog | 5 to 10 mph NW | 84% |
| Monday | 68°F | Chance Rain Showers | 10 mph NE | 39% |
| Monday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Wednesday | 62°F | Chance Rain Showers | 15 mph NE | 34% |
| Wednesday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 35% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 33% |
| Friday | 67°F | Slight Chance Rain Showers | 10 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Chalfont (40.289, -75.210). Updated through the day.
Growing snapshot for Chalfont
Last spring frost
Apr 13
First fall frost
Oct 30
Growing season
198 days
Hardiness zone
7a
More local growing data for Chalfont: nearby ZIP 18914 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Doylestown Ap, Pa (5.4 mi from Chalfont). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.