Rossiter, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rossiter, a community in Indiana County, Pennsylvania.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. South wind around 2 mph.
7-day forecast for Rossiter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 2 mph S | 2% |
| Tonight | 51°F | Mostly Clear | 6 to 9 mph SE | 2% |
| Wednesday | 75°F | Partly Sunny | 6 to 9 mph SE | 3% |
| Wednesday Night | 60°F | Light Rain | 10 mph S | 99% |
| Thursday | 69°F | Light Rain Likely | 7 to 12 mph SW | 66% |
| Thursday Night | 49°F | Mostly Cloudy | 5 mph SW | 10% |
| Friday | 64°F | Partly Sunny then Slight Chance Light Rain | 2 to 6 mph W | 15% |
| Friday Night | 44°F | Chance Light Rain | 2 to 6 mph NW | 25% |
| Saturday | 54°F | Chance Light Rain | 7 to 10 mph W | 33% |
| Saturday Night | 38°F | Chance Light Rain then Mostly Cloudy | 8 mph W | 33% |
| Sunday | 53°F | Partly Sunny then Slight Chance Light Rain | 6 to 10 mph W | 17% |
| Sunday Night | 37°F | Slight Chance Light Rain | 8 to 12 mph W | 22% |
| Monday | 54°F | Chance Light Rain | 10 to 15 mph W | 32% |
| Monday Night | 37°F | Chance Light Rain | 8 to 14 mph SW | 32% |
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 Nov 4, 2026.