Renfrew, PA Weather & Growing Conditions
This Afternoon
76°F
Slight Chance Rain Showers
A slight chance of rain showers before 2pm. Mostly cloudy, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance Rain Showers | 5 mph SE | 18% |
| Tonight | 62°F | Showers And Thunderstorms | 5 mph SE | 79% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 8 mph W | 98% |
| Sunday Night | 52°F | Chance Showers And Thunderstorms | 8 mph N | 30% |
| Monday | 67°F | Chance Rain Showers | 10 mph NE | 28% |
| Monday Night | 50°F | Chance Rain Showers | 8 to 13 mph E | 53% |
| Tuesday | 62°F | Rain Showers Likely | 14 mph E | 56% |
| Tuesday Night | 49°F | Rain Showers Likely | 15 mph E | 69% |
| Wednesday | 61°F | Rain Showers Likely | 15 mph E | 69% |
| Wednesday Night | 48°F | Chance Rain Showers | 10 to 14 mph E | 52% |
| Thursday | 65°F | Chance Rain Showers | 8 to 12 mph E | 52% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 5 to 8 mph E | 15% |
| Friday | 68°F | Partly Sunny | 7 mph NE | 13% |
| Friday Night | 48°F | Partly Cloudy | 7 mph NE | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Renfrew, PA
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6b
Explore more for Renfrew, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Butler 2 Sw, Pa (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.