Knoxville, PA Weather & Growing Conditions
Tonight
47°F
Partly Cloudy then Patchy Fog
Patchy fog after 1am. Partly cloudy, with a low around 47. Northeast wind 2 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Partly Cloudy then Patchy Fog | 2 to 8 mph NE | 0% |
| Saturday | 63°F | Areas Of Fog then Partly Sunny | 5 mph E | 2% |
| Saturday Night | 55°F | Mostly Cloudy then Rain Showers | 3 to 9 mph SE | 87% |
| Sunday | 63°F | Showers And Thunderstorms | 6 to 9 mph SW | 96% |
| Sunday Night | 49°F | Rain Showers Likely | 8 to 12 mph N | 62% |
| Monday | 58°F | Partly Sunny then Slight Chance Rain Showers | 10 mph NE | 20% |
| Monday Night | 46°F | Chance Rain Showers | 6 to 10 mph NE | 47% |
| Tuesday | 55°F | Chance Rain Showers | 6 to 9 mph E | 47% |
| Tuesday Night | 44°F | Chance Rain Showers | 10 mph E | 44% |
| Wednesday | 54°F | Chance Rain Showers | 8 mph E | 44% |
| Wednesday Night | 45°F | Chance Showers And Thunderstorms | 8 mph E | 44% |
| Thursday | 56°F | Chance Showers And Thunderstorms | 7 mph E | 42% |
| Thursday Night | 46°F | Chance Rain Showers | 3 to 7 mph NE | 42% |
| Friday | 61°F | Slight Chance Rain Showers then Partly Sunny | 3 to 8 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knoxville, PA
Last spring frost
May 9
First fall frost
Oct 12
Growing season
155 days
Hardiness zone
5b
Explore more for Knoxville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Cowanesque Dam, Pa (14.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.