Oswayo, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oswayo, a borough in Allegany County, Pennsylvania.
This Afternoon
69°F
Mostly Sunny
Mostly sunny, with a high near 69. North wind around 7 mph.
7-day forecast for Oswayo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 7 mph N | 0% |
| Tonight | 46°F | Mostly Cloudy then Patchy Fog | 2 to 6 mph NE | 1% |
| Saturday | 65°F | Patchy Fog then Partly Sunny | 3 mph SE | 2% |
| Saturday Night | 54°F | Rain Showers | 3 to 8 mph SE | 84% |
| Sunday | 65°F | Showers And Thunderstorms | 7 mph SW | 94% |
| Sunday Night | 48°F | Rain Showers Likely | 9 mph N | 58% |
| Monday | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph NE | 17% |
| Monday Night | 45°F | Chance Rain Showers | 9 mph E | 45% |
| Tuesday | 56°F | Chance Rain Showers | 9 mph E | 45% |
| Tuesday Night | 43°F | Chance Rain Showers | 12 mph E | 51% |
| Wednesday | 55°F | Chance Rain Showers | 12 mph SE | 50% |
| Wednesday Night | 44°F | Chance Showers And Thunderstorms | 7 to 10 mph SE | 46% |
| Thursday | 57°F | Chance Showers And Thunderstorms | 7 mph E | 44% |
| Thursday Night | 45°F | Chance Showers And Thunderstorms | 2 to 6 mph NE | 41% |
Forecast source: National Weather Service (api.weather.gov) for Oswayo (41.921, -78.021). Updated through the day.
Growing snapshot for Oswayo
Last spring frost
May 20
First fall frost
Sep 29
Growing season
130 days
Hardiness zone
5b
More local growing data for Oswayo: nearby ZIP 14708 weather · frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Oswayo 1 Ene, Pa (7.2 mi from Oswayo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.