Foster Brook, PA Weather & Growing Conditions
Overnight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Mostly Cloudy | 2 mph E | 0% |
| Saturday | 69°F | Partly Sunny | 5 mph SE | 1% |
| Saturday Night | 53°F | Showers And Thunderstorms | 7 mph SE | 81% |
| Sunday | 66°F | Showers And Thunderstorms | 7 mph W | 86% |
| Sunday Night | 42°F | Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 29% |
| Monday | 61°F | Mostly Cloudy | 9 mph NE | 2% |
| Monday Night | 40°F | Chance Rain Showers | 5 to 8 mph NE | 39% |
| Tuesday | 59°F | Chance Rain Showers | 8 mph E | 39% |
| Tuesday Night | 40°F | Chance Rain Showers | 8 to 12 mph E | 38% |
| Wednesday | 57°F | Chance Rain Showers | 12 mph E | 38% |
| Wednesday Night | 41°F | Chance Showers And Thunderstorms | 7 to 10 mph SE | 44% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 7 mph E | 44% |
| Thursday Night | 41°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph E | 22% |
| Friday | 64°F | Partly Sunny | 3 to 7 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Foster Brook, PA
Last spring frost
May 7
First fall frost
Oct 11
Growing season
156 days
Hardiness zone
5b
Explore more for Foster Brook, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Olean, Ny (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.