Clarks Summit, PA Weather & Growing Conditions
This Afternoon
70°F
Mostly Cloudy
Mostly cloudy, with a high near 70. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Cloudy | 3 mph S | 1% |
| Tonight | 57°F | Mostly Cloudy then Rain Showers | 3 to 14 mph S | 81% |
| Sunday | 68°F | Rain Showers | 6 to 15 mph S | 100% |
| Sunday Night | 51°F | Rain Showers Likely then Mostly Cloudy | 7 to 14 mph NW | 67% |
| Monday | 67°F | Mostly Cloudy | 7 to 12 mph N | 3% |
| Monday Night | 47°F | Mostly Cloudy then Chance Rain Showers | 7 mph NE | 31% |
| Tuesday | 61°F | Chance Rain Showers | 7 mph E | 31% |
| Tuesday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 13 mph E | 20% |
| Wednesday | 60°F | Partly Sunny | 13 mph E | 8% |
| Wednesday Night | 44°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 12 mph E | 22% |
| Thursday | 60°F | Slight Chance Rain Showers | 8 to 12 mph E | 22% |
| Thursday Night | 44°F | Chance Rain Showers | 6 to 9 mph NE | 31% |
| Friday | 64°F | Chance Rain Showers | 12 mph N | 31% |
| Friday Night | 46°F | Chance Rain Showers | 13 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clarks Summit, PA
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
178 days
Hardiness zone
6a
Explore more for Clarks Summit, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Wilkes-Barre Intl Ap, Pa (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.