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
67°F
Partly Sunny
Partly sunny, with a high near 67. South wind around 3 mph.
7-day forecast for New Columbia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Partly Sunny | 3 mph S | 2% |
| Tonight | 47°F | Areas Of Fog | 1 mph SE | 2% |
| Wednesday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 9 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Rain Showers | 8 mph S | 83% |
| Thursday | 72°F | Rain Showers | 5 to 9 mph S | 86% |
| Thursday Night | 53°F | Mostly Cloudy then Chance Rain Showers | 0 to 3 mph SW | 31% |
| Friday | 67°F | Chance Rain Showers | 1 mph NW | 40% |
| Friday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 2 mph NW | 40% |
| Saturday | 61°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph NW | 18% |
| Saturday Night | 38°F | Slight Chance Rain Showers then Partly Cloudy | 7 mph NW | 18% |
| Sunday | 59°F | Mostly Sunny | 3 to 7 mph W | 8% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph W | 14% |
| Monday | 58°F | Slight Chance Rain Showers | 5 to 10 mph NW | 21% |
| Monday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 7 mph W | 21% |
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 Nov 3, 2026.