Rossiter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rossiter, a community in Indiana County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 6 mph.
7-day forecast for Rossiter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 6 mph N | 7% |
| Tonight | 54°F | Partly Cloudy | 7 mph NE | 7% |
| Saturday | 73°F | Partly Sunny | 7 mph SE | 4% |
| Saturday Night | 62°F | Mostly Cloudy then Showers And Thunderstorms Likely | 6 to 9 mph SE | 67% |
| Sunday | 73°F | Showers And Thunderstorms | 8 mph SW | 98% |
| Sunday Night | 55°F | Rain Showers | 6 to 9 mph N | 88% |
| Monday | 66°F | Chance Rain Showers | 10 mph NE | 28% |
| Monday Night | 54°F | Showers And Thunderstorms Likely | 9 to 15 mph E | 63% |
| Tuesday | 61°F | Showers And Thunderstorms Likely | 12 to 15 mph E | 68% |
| Tuesday Night | 50°F | Showers And Thunderstorms Likely | 14 to 17 mph E | 61% |
| Wednesday | 59°F | Showers And Thunderstorms Likely | 12 to 16 mph E | 61% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 13 to 16 mph E | 52% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 8 to 13 mph E | 49% |
| Thursday Night | 50°F | Chance Rain Showers | 7 mph E | 31% |
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 Sep 19, 2026.