Mainville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mainville, a community in Columbia County, Pennsylvania.
Tonight
50°F
Partly Cloudy then Areas Of Fog
Areas of fog after midnight. Partly cloudy, with a low around 50. Northeast wind around 3 mph.
7-day forecast for Mainville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Partly Cloudy then Areas Of Fog | 3 mph NE | 0% |
| Saturday | 73°F | Areas Of Fog then Mostly Sunny | 1 mph E | 2% |
| Saturday Night | 59°F | Mostly Cloudy then Rain Showers Likely | 1 to 6 mph SE | 71% |
| Sunday | 70°F | Rain Showers | 2 to 7 mph S | 98% |
| Sunday Night | 56°F | Showers And Thunderstorms | 5 mph N | 98% |
| Monday | 68°F | Chance Rain Showers | 5 mph NE | 27% |
| Monday Night | 52°F | Chance Rain Showers | 2 to 7 mph NE | 43% |
| Tuesday | 62°F | Chance Rain Showers | 7 mph E | 49% |
| Tuesday Night | 49°F | Chance Rain Showers | 7 mph E | 49% |
| Wednesday | 61°F | Chance Rain Showers | 7 mph E | 42% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 6 mph E | 42% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 6 mph NE | 38% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 3 mph NE | 36% |
| Friday | 68°F | Slight Chance Rain Showers then Partly Sunny | 5 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Mainville (40.983, -76.370). Updated through the day.
Growing snapshot for Mainville
Last spring frost
Apr 27
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
6b
More local growing data for Mainville: nearby ZIP 17815 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Almedia
Aristes
Ashland
Benton
Berwick
Bloomsburg
Briar Creek
Buckhorn
Catawissa
Centralia
East Berwick
Elk Grove
Elysburg
Espy
Eyers Grove
Fernville
Foundryville
Iola
Jamison City
Jerseytown
Jonestown
Lightstreet
Lime Ridge
Locustdale
Mifflinville
Millville
Numidia
Orangeville
Rohrsburg
Rupert
Climate data from the nearest NOAA station, Bear Gap, Pa (14.4 mi from Mainville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.