Knoxville, PA Weather & Growing Conditions
Overnight
49°F
Partly Cloudy
Partly cloudy, with a low around 49. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Partly Cloudy | 5 mph S | 0% |
| Wednesday | 70°F | Mostly Sunny | 3 to 12 mph S | 2% |
| Wednesday Night | 56°F | Light Rain | 14 to 17 mph S | 97% |
| Thursday | 68°F | Light Rain Likely | 9 to 14 mph SW | 73% |
| Thursday Night | 46°F | Mostly Cloudy | 2 to 8 mph SW | 7% |
| Friday | 61°F | Mostly Cloudy | 5 mph SW | 14% |
| Friday Night | 42°F | Mostly Cloudy then Chance Light Rain | 5 mph W | 32% |
| Saturday | 50°F | Light Rain Likely | 6 to 13 mph W | 56% |
| Saturday Night | 37°F | Light Rain Likely | 14 mph W | 56% |
| Sunday | 51°F | Slight Chance Light Rain | 13 mph W | 15% |
| Sunday Night | 35°F | Partly Cloudy | 12 to 16 mph W | 9% |
| Monday | 52°F | Slight Chance Light Rain | 13 mph W | 17% |
| Monday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 12 mph W | 17% |
| Tuesday | 54°F | Mostly Sunny | 14 mph W | 12% |
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 Nov 4, 2026.