Roscoe, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roscoe, a borough in Washington County, Pennsylvania.
This Afternoon
78°F
Sunny
Sunny, with a high near 78. Wind around 0 mph.
7-day forecast for Roscoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 0 mph | 1% |
| Tonight | 52°F | Mostly Clear | 3 mph S | 2% |
| Wednesday | 78°F | Partly Sunny | 2 to 7 mph S | 8% |
| Wednesday Night | 61°F | Light Rain | 8 mph S | 99% |
| Thursday | 71°F | Chance Light Rain | 6 to 12 mph SW | 38% |
| Thursday Night | 49°F | Mostly Cloudy | 1 to 5 mph SW | 12% |
| Friday | 66°F | Partly Sunny then Slight Chance Light Rain | 1 to 6 mph W | 15% |
| Friday Night | 44°F | Chance Light Rain | 5 mph NW | 28% |
| Saturday | 55°F | Chance Light Rain | 5 to 10 mph W | 31% |
| Saturday Night | 36°F | Chance Light Rain then Mostly Cloudy | 2 to 7 mph W | 31% |
| Sunday | 56°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph SW | 15% |
| Sunday Night | 34°F | Chance Light Rain | 9 mph SW | 25% |
| Monday | 56°F | Chance Light Rain | 9 to 13 mph W | 32% |
| Monday Night | 35°F | Chance Light Rain | 8 to 12 mph SW | 32% |
Forecast source: National Weather Service (api.weather.gov) for Roscoe (40.078, -79.864). Updated through the day.
Growing snapshot for Roscoe
Last spring frost
Apr 13
First fall frost
Nov 5
Growing season
205 days
More local growing data for Roscoe: nearby ZIP 15477 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Charleroi Lock 4, Pa (5.1 mi from Roscoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.