New Lebanon, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Lebanon, a borough in Mercer County, Pennsylvania.
Today
73°F
Slight Chance Rain Showers then Partly Sunny
A slight chance of rain showers before noon. Partly sunny, with a high near 73. Southeast wind around 7 mph. Chance of precipitation is 20%.
7-day forecast for New Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Slight Chance Rain Showers then Partly Sunny | 7 mph SE | 18% |
| Tonight | 60°F | Showers And Thunderstorms | 7 mph SE | 76% |
| Sunday | 72°F | Showers And Thunderstorms | 7 to 10 mph W | 92% |
| Sunday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 10 mph NE | 49% |
| Monday | 66°F | Mostly Cloudy | 12 mph NE | 10% |
| Monday Night | 48°F | Chance Rain Showers | 9 to 13 mph NE | 46% |
| Tuesday | 61°F | Chance Rain Showers | 15 mph E | 47% |
| Tuesday Night | 48°F | Rain Showers Likely | 14 to 18 mph E | 56% |
| Wednesday | 60°F | Rain Showers Likely | 14 to 18 mph E | 56% |
| Wednesday Night | 48°F | Showers And Thunderstorms Likely | 15 mph E | 60% |
| Thursday | 64°F | Showers And Thunderstorms Likely | 9 to 14 mph E | 60% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 6 to 9 mph E | 21% |
| Friday | 68°F | Slight Chance Rain Showers | 9 mph NE | 19% |
| Friday Night | 47°F | Partly Cloudy | 5 to 9 mph NE | 12% |
Forecast source: National Weather Service (api.weather.gov) for New Lebanon (41.420, -80.080). Updated through the day.
Growing snapshot for New Lebanon
Last spring frost
May 2
First fall frost
Oct 23
Growing season
171 days
Hardiness zone
6a
More local growing data for New Lebanon: nearby ZIP 16145 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Clark
Farrell
Fredonia
Greenville
Grove City
Hermitage
Jackson Center
Lake Latonka
Mercer
Reynolds Heights
Sandy Lake
Sharon
Sharpsville
Sheakleyville
Stoneboro
West Middlesex
Wheatland
Climate data from the nearest NOAA station, Franklin, Pa (12.9 mi from New Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.