Clarendon, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarendon, a borough in Warren County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 6 mph.
7-day forecast for Clarendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 6 mph N | 0% |
| Tonight | 50°F | Areas Of Fog | 1 to 5 mph NE | 1% |
| Saturday | 73°F | Patchy Fog then Partly Sunny | 3 mph SE | 12% |
| Saturday Night | 57°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph SE | 81% |
| Sunday | 72°F | Showers And Thunderstorms | 5 mph W | 89% |
| Sunday Night | 49°F | Chance Rain Showers | 6 mph NE | 50% |
| Monday | 66°F | Mostly Cloudy | 7 mph NE | 14% |
| Monday Night | 47°F | Chance Rain Showers | 7 mph E | 50% |
| Tuesday | 64°F | Chance Rain Showers | 7 mph E | 50% |
| Tuesday Night | 46°F | Showers And Thunderstorms Likely | 9 mph E | 56% |
| Wednesday | 61°F | Rain Showers Likely | 8 mph SE | 56% |
| Wednesday Night | 46°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 54% |
| Thursday | 64°F | Chance Rain Showers | 5 mph E | 47% |
| Thursday Night | 46°F | Chance Rain Showers | 1 to 5 mph NE | 40% |
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 Sep 18, 2026.