Clarendon, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarendon, a borough in Warren County, Pennsylvania.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. South wind around 5 mph.
7-day forecast for Clarendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 5 mph S | 2% |
| Tonight | 51°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 77°F | Partly Sunny | 3 to 8 mph S | 4% |
| Wednesday Night | 59°F | Rain Showers | 7 mph S | 97% |
| Thursday | 70°F | Rain Showers Likely | 5 to 8 mph SW | 59% |
| Thursday Night | 45°F | Partly Cloudy | 0 to 3 mph SW | 6% |
| Friday | 64°F | Partly Sunny then Slight Chance Rain Showers | 3 mph W | 22% |
| Friday Night | 42°F | Chance Rain Showers | 2 mph NW | 37% |
| Saturday | 55°F | Chance Rain Showers | 3 to 7 mph W | 43% |
| Saturday Night | 34°F | Chance Rain Showers | 1 to 5 mph W | 43% |
| Sunday | 55°F | Partly Sunny then Slight Chance Rain Showers | 2 to 7 mph SW | 17% |
| Sunday Night | 32°F | Chance Rain Showers | 5 mph W | 31% |
| Monday | 56°F | Chance Rain Showers | 5 to 8 mph W | 34% |
| Monday Night | 33°F | Chance Rain Showers | 6 mph SW | 34% |
Forecast source: National Weather Service (api.weather.gov) for Clarendon (41.781, -79.094). Updated through the day.
Growing snapshot for Clarendon
Last spring frost
May 4
First fall frost
Oct 21
Growing season
168 days
Hardiness zone
5b
More local growing data for Clarendon: nearby ZIP 16352 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Warren, Pa (8.1 mi from Clarendon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.