Chalfont, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chalfont, a borough in Bucks County, Pennsylvania.
Today
75°F
Partly Sunny
Partly sunny, with a high near 75. East wind 5 to 10 mph.
7-day forecast for Chalfont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Partly Sunny | 5 to 10 mph E | 1% |
| Tonight | 58°F | Mostly Cloudy | 5 mph E | 13% |
| Sunday | 73°F | Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 81% |
| Sunday Night | 57°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 79% |
| Monday | 69°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Monday Night | 51°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Wednesday | 63°F | Chance Rain Showers | 15 mph NE | 28% |
| Wednesday Night | 50°F | Chance Rain Showers | 15 mph NE | 32% |
| Thursday | 62°F | Chance Rain Showers | 15 mph NE | 33% |
| Thursday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Friday | 65°F | Chance Rain Showers | 10 to 15 mph N | 30% |
| Friday Night | 49°F | Chance Rain Showers | 5 to 15 mph N | 26% |
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.