Mainesburg, PA Weather & Growing Conditions
Overnight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Cloudy | 3 mph NE | 0% |
| Saturday | 64°F | Patchy Fog then Mostly Sunny | 3 mph E | 2% |
| Saturday Night | 56°F | Mostly Cloudy then Rain Showers | 2 to 10 mph S | 86% |
| Sunday | 62°F | Showers And Thunderstorms | 6 to 12 mph SW | 97% |
| Sunday Night | 51°F | Rain Showers | 7 to 10 mph N | 79% |
| Monday | 58°F | Slight Chance Rain Showers | 10 mph NE | 21% |
| Monday Night | 48°F | Chance Rain Showers | 8 mph NE | 47% |
| Tuesday | 55°F | Chance Rain Showers | 9 mph E | 47% |
| Tuesday Night | 45°F | Chance Rain Showers | 8 mph E | 42% |
| Wednesday | 54°F | Chance Rain Showers | 9 mph E | 42% |
| Wednesday Night | 46°F | Chance Showers And Thunderstorms | 8 mph E | 40% |
| Thursday | 55°F | Chance Showers And Thunderstorms | 7 mph E | 40% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 6 mph NE | 37% |
| Friday | 61°F | Slight Chance Rain Showers | 5 to 9 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mainesburg, PA
Last spring frost
May 16
First fall frost
Oct 2
Growing season
139 days
Hardiness zone
6a
Explore more for Mainesburg, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Canton, Pa (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.