New Columbia, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Columbia, a community in Union County, Pennsylvania.
This Afternoon
78°F
Sunny
Sunny, with a high near 78. North wind around 7 mph.
7-day forecast for New Columbia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 7 mph N | 0% |
| Tonight | 51°F | Partly Cloudy then Patchy Fog | 2 to 7 mph N | 0% |
| Saturday | 71°F | Patchy Fog then Mostly Sunny | 2 mph E | 2% |
| Saturday Night | 60°F | Mostly Cloudy then Rain Showers | 1 to 8 mph SE | 82% |
| Sunday | 70°F | Showers And Thunderstorms | 5 to 9 mph S | 99% |
| Sunday Night | 56°F | Showers And Thunderstorms | 5 to 9 mph NW | 90% |
| Monday | 67°F | Chance Rain Showers | 6 to 9 mph N | 27% |
| Monday Night | 53°F | Chance Rain Showers | 7 mph NE | 52% |
| Tuesday | 61°F | Rain Showers Likely | 8 mph NE | 56% |
| Tuesday Night | 49°F | Rain Showers Likely | 7 mph NE | 56% |
| Wednesday | 60°F | Chance Rain Showers | 7 mph NE | 46% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 6 mph NE | 46% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 6 mph NE | 37% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 5 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for New Columbia (41.037, -76.878). Updated through the day.
Growing snapshot for New Columbia
Last spring frost
Apr 26
First fall frost
Oct 20
Growing season
176 days
Hardiness zone
6b
More local growing data for New Columbia: nearby ZIP 17886 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lewisburg, Pa (4.9 mi from New Columbia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.