New Columbia, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Columbia, a community in Union County, Pennsylvania.
Today
83°F
Sunny
Sunny, with a high near 83. East wind around 1 mph.
7-day forecast for New Columbia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 1 mph E | 0% |
| Tonight | 63°F | Partly Cloudy | 0 mph | 1% |
| Wednesday | 81°F | Mostly Cloudy | 0 to 5 mph SE | 14% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Patchy Fog | 0 to 3 mph SE | 52% |
| Thursday | 86°F | Patchy Fog then Showers And Thunderstorms | 0 to 6 mph S | 81% |
| Thursday Night | 71°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 3 mph W | 81% |
| Friday | 85°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 73% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph SW | 73% |
| Saturday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 6 mph W | 44% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 3 mph W | 44% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 11% |
| Sunday Night | 69°F | Partly Cloudy | 0 to 3 mph SW | 11% |
| Monday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 8 mph W | 25% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 1 to 7 mph W | 25% |
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 Aug 4, 2026.