Knox, PA Weather & Growing Conditions
Tonight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. Northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Partly Cloudy | 6 mph NE | 10% |
| Saturday | 74°F | Partly Sunny | 6 mph E | 14% |
| Saturday Night | 61°F | Mostly Cloudy then Showers And Thunderstorms | 3 to 7 mph SE | 80% |
| Sunday | 73°F | Showers And Thunderstorms | 7 mph SW | 93% |
| Sunday Night | 54°F | Rain Showers Likely | 6 to 9 mph N | 65% |
| Monday | 67°F | Chance Rain Showers | 9 mph NE | 27% |
| Monday Night | 52°F | Chance Rain Showers | 8 to 12 mph E | 54% |
| Tuesday | 63°F | Rain Showers Likely | 12 mph E | 60% |
| Tuesday Night | 50°F | Showers And Thunderstorms Likely | 14 mph E | 63% |
| Wednesday | 61°F | Rain Showers Likely | 10 to 14 mph E | 63% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 13 mph E | 53% |
| Thursday | 63°F | Chance Rain Showers | 7 to 10 mph E | 46% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 7 mph E | 24% |
| Friday | 70°F | Partly Sunny then Slight Chance Rain Showers | 7 mph NE | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knox, PA
Last spring frost
May 9
First fall frost
Oct 11
Growing season
154 days
Hardiness zone
6a
Explore more for Knox, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Clarion 3 Sw, Pa (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.