Foster Brook, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foster Brook, a community in Mckean County, Pennsylvania.
Today
81°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 81. South wind around 2 mph.
7-day forecast for Foster Brook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Fog then Sunny | 2 mph S | 0% |
| Tonight | 57°F | Mostly Clear then Patchy Fog | 2 mph SE | 0% |
| Wednesday | 83°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 6 mph SE | 38% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 3 mph S | 46% |
| Thursday | 82°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 1 to 6 mph SW | 85% |
| Thursday Night | 62°F | Showers And Thunderstorms | 0 to 3 mph SW | 85% |
| Friday | 81°F | Showers And Thunderstorms | 1 to 5 mph SW | 84% |
| Friday Night | 60°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 84% |
| Saturday | 81°F | Showers And Thunderstorms Likely | 1 to 6 mph W | 59% |
| Saturday Night | 61°F | Showers And Thunderstorms Likely | 3 mph SW | 59% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 25% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 6 mph SW | 32% |
| Monday | 82°F | Chance Rain Showers | 6 to 9 mph W | 48% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 48% |
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 Aug 4, 2026.