New Britain, PA Weather & Growing Conditions
Today
73°F
Patchy Fog then Sunny
Patchy fog between 8am and 9am. Sunny, with a high near 73. South wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Fog then Sunny | 0 to 5 mph S | 2% |
| Tonight | 57°F | Mostly Cloudy | 5 mph S | 2% |
| Thursday | 72°F | Light Rain Likely | 5 to 10 mph S | 60% |
| Thursday Night | 60°F | Light Rain | 0 to 5 mph SW | 84% |
| Friday | 69°F | Light Rain | 0 mph | 84% |
| Friday Night | 49°F | Light Rain | 0 to 5 mph NW | 76% |
| Saturday | 64°F | Mostly Sunny | 5 to 10 mph W | 10% |
| Saturday Night | 41°F | Slight Chance Light Rain | 5 to 10 mph W | 15% |
| Sunday | 59°F | Mostly Sunny | 5 to 10 mph NW | 4% |
| Sunday Night | 38°F | Mostly Clear | 5 to 10 mph W | 5% |
| Monday | 58°F | Sunny then Slight Chance Light Rain | 10 to 15 mph W | 15% |
| Monday Night | 36°F | Slight Chance Light Rain then Mostly Clear | 5 mph W | 15% |
| Tuesday | 62°F | Sunny | 5 to 15 mph W | 4% |
| Tuesday Night | 38°F | Mostly Clear | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Britain, PA
Last spring frost
Apr 13
First fall frost
Oct 30
Growing season
198 days
Hardiness zone
7a
Explore more for New Britain, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Doylestown Ap, Pa (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.