Mainesburg, PA Weather & Growing Conditions
Today
78°F
Sunny
Sunny, with a high near 78. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 3 mph S | 0% |
| Tonight | 60°F | Mostly Clear | 3 mph S | 0% |
| Wednesday | 78°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph S | 18% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 7 mph S | 25% |
| Thursday | 80°F | Showers And Thunderstorms | 5 to 8 mph SW | 83% |
| Thursday Night | 68°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph SW | 83% |
| Friday | 81°F | Showers And Thunderstorms | 3 to 7 mph SW | 80% |
| Friday Night | 65°F | Showers And Thunderstorms | 5 mph SW | 80% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 3 to 8 mph W | 66% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely | 6 mph W | 66% |
| Sunday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 19% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 7 mph SW | 19% |
| Monday | 82°F | Chance Showers And Thunderstorms | 6 to 12 mph W | 40% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 40% |
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 Aug 4, 2026.