Mainesburg, PA Weather & Growing Conditions
This Afternoon
63°F
Mostly Sunny
Mostly sunny, with a high near 63. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Sunny | 7 mph S | 3% |
| Tonight | 50°F | Partly Cloudy | 8 mph S | 3% |
| Wednesday | 66°F | Mostly Sunny | 6 to 12 mph S | 2% |
| Wednesday Night | 58°F | Mostly Cloudy then Rain Showers | 13 to 16 mph S | 87% |
| Thursday | 65°F | Rain Showers Likely | 8 to 14 mph S | 73% |
| Thursday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 7 mph SW | 19% |
| Friday | 61°F | Chance Rain Showers | 1 to 6 mph W | 34% |
| Friday Night | 45°F | Slight Chance Rain Showers | 3 mph NW | 23% |
| Saturday | 53°F | Chance Rain Showers | 5 to 10 mph NW | 34% |
| Saturday Night | 40°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph W | 34% |
| Sunday | 51°F | Partly Sunny | 5 to 9 mph W | 8% |
| Sunday Night | 37°F | Slight Chance Rain Showers | 9 mph W | 16% |
| Monday | 51°F | Chance Rain Showers | 9 to 14 mph NW | 27% |
| Monday Night | 38°F | Chance Rain Showers | 10 mph W | 27% |
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 Nov 4, 2026.