Knox, PA Weather & Growing Conditions
Today
72°F
Slight Chance Rain Showers then Partly Sunny
A slight chance of rain showers before noon. Partly sunny, with a high near 72. Southeast wind around 6 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Slight Chance Rain Showers then Partly Sunny | 6 mph SE | 16% |
| Tonight | 60°F | Showers And Thunderstorms | 3 to 7 mph SE | 88% |
| Sunday | 72°F | Showers And Thunderstorms | 8 mph SW | 93% |
| Sunday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NE | 15% |
| Monday | 66°F | Mostly Cloudy | 9 mph NE | 14% |
| Monday Night | 48°F | Chance Rain Showers | 7 to 12 mph E | 50% |
| Tuesday | 60°F | Chance Rain Showers | 12 mph E | 51% |
| Tuesday Night | 46°F | Rain Showers Likely | 12 to 15 mph E | 56% |
| Wednesday | 58°F | Rain Showers Likely | 10 to 15 mph E | 56% |
| Wednesday Night | 47°F | Showers And Thunderstorms Likely | 13 mph E | 57% |
| Thursday | 63°F | Rain Showers Likely | 7 to 10 mph E | 57% |
| Thursday Night | 46°F | Chance Showers And Thunderstorms | 7 mph E | 25% |
| Friday | 66°F | Slight Chance Rain Showers | 7 mph NE | 17% |
| Friday Night | 46°F | Slight Chance Rain Showers then Partly Cloudy | 6 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 (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.