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Fredonia, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fredonia, a borough in Mercer County, Pennsylvania.

This Afternoon
74°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 74. Southeast wind around 6 mph. Chance of precipitation is 20%.

7-day forecast for Fredonia

WhenTempForecastWindPrecip
This Afternoon 74°F Slight Chance Rain Showers 6 mph SE 19%
Tonight 61°F Showers And Thunderstorms 7 mph SE 84%
Sunday 72°F Showers And Thunderstorms 7 to 10 mph W 94%
Sunday Night 50°F Slight Chance Rain Showers then Mostly Cloudy 7 to 10 mph NE 18%
Monday 66°F Mostly Cloudy 12 mph NE 9%
Monday Night 49°F Slight Chance Rain Showers 9 to 13 mph NE 24%
Tuesday 62°F Chance Rain Showers 13 to 16 mph E 39%
Tuesday Night 48°F Rain Showers Likely 18 mph E 67%
Wednesday 61°F Rain Showers Likely 15 to 18 mph E 67%
Wednesday Night 49°F Chance Rain Showers 14 to 17 mph E 49%
Thursday 65°F Chance Rain Showers 9 to 14 mph E 49%
Thursday Night 48°F Slight Chance Rain Showers then Mostly Cloudy 8 mph E 16%
Friday 68°F Partly Sunny 8 mph NE 12%
Friday Night 48°F Partly Cloudy 5 to 8 mph NE 11%

Forecast source: National Weather Service (api.weather.gov) for Fredonia (41.322, -80.258). Updated through the day.

Growing snapshot for Fredonia

Last spring frost
May 15
First fall frost
Oct 3
Growing season
140 days
Hardiness zone
6a

More local growing data for Fredonia: nearby ZIP 16124 weather · frost dates · planting calendar · Pennsylvania frost dates

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Climate data from the nearest NOAA station, Mercer, Pa (7.7 mi from Fredonia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.