Foster Brook, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foster Brook, a community in Mckean County, Pennsylvania.
This Afternoon
71°F
Sunny
Sunny, with a high near 71. South wind around 5 mph.
7-day forecast for Foster Brook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 5 mph S | 2% |
| Tonight | 48°F | Partly Cloudy | 5 mph SE | 3% |
| Wednesday | 74°F | Partly Sunny | 3 to 9 mph S | 3% |
| Wednesday Night | 57°F | Rain Showers | 9 mph S | 96% |
| Thursday | 68°F | Chance Rain Showers | 7 to 12 mph SW | 53% |
| Thursday Night | 44°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Friday | 62°F | Slight Chance Rain Showers | 1 to 5 mph W | 19% |
| Friday Night | 39°F | Chance Rain Showers | 2 mph NW | 39% |
| Saturday | 53°F | Chance Rain Showers | 2 to 8 mph NW | 44% |
| Saturday Night | 31°F | Chance Rain Showers | 2 to 7 mph W | 44% |
| Sunday | 52°F | Partly Sunny | 5 to 9 mph W | 13% |
| Sunday Night | 29°F | Chance Rain Showers | 7 mph W | 31% |
| Monday | 52°F | Chance Rain Showers | 7 to 12 mph W | 36% |
| Monday Night | 30°F | Chance Rain Showers | 6 to 9 mph SW | 36% |
Forecast source: National Weather Service (api.weather.gov) for Foster Brook (41.983, -78.602). Updated through the day.
Growing snapshot for Foster Brook
Last spring frost
May 7
First fall frost
Oct 11
Growing season
156 days
Hardiness zone
5b
More local growing data for Foster Brook: nearby ZIP 16727 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Bradford
Eldred
Kane
Lewis Run
Mount Jewett
Port Allegany
Rew
Smethport
University of Pittsburgh Bradford
Climate data from the nearest NOAA station, Olean, Ny (7.4 mi from Foster Brook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.