Rossiter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rossiter, a community in Indiana County, Pennsylvania.
Today
82°F
Sunny
Sunny, with a high near 82. Southeast wind around 3 mph.
7-day forecast for Rossiter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 3 mph SE | 0% |
| Tonight | 64°F | Partly Cloudy | 5 mph SE | 0% |
| Wednesday | 82°F | Partly Sunny then Scattered Showers And Thunderstorms | 6 mph SE | 42% |
| Wednesday Night | 66°F | Scattered Showers And Thunderstorms | 5 mph SE | 41% |
| Thursday | 82°F | Showers And Thunderstorms | 3 to 7 mph S | 83% |
| Thursday Night | 66°F | Showers And Thunderstorms | 5 mph SW | 83% |
| Friday | 81°F | Showers And Thunderstorms | 3 to 7 mph SW | 82% |
| Friday Night | 65°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 82% |
| Saturday | 80°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 8 mph SW | 50% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 6 mph SW | 50% |
| Sunday | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 23% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 23% |
| Monday | 82°F | Chance Showers And Thunderstorms | 12 mph W | 44% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 6 to 9 mph W | 50% |
Forecast source: National Weather Service (api.weather.gov) for Rossiter (40.901, -78.936). Updated through the day.
Growing snapshot for Rossiter
Last spring frost
May 4
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
6a
More local growing data for Rossiter: nearby ZIP 15772 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Grampian 1E, Pa (17.6 mi from Rossiter). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.