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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.

Overnight
55°F
Mostly Cloudy
Mostly cloudy, with a low around 55. East wind around 6 mph.

7-day forecast for Fredonia

WhenTempForecastWindPrecip
Overnight 55°F Mostly Cloudy 6 mph E 1%
Saturday 74°F Mostly Cloudy 7 mph E 6%
Saturday Night 61°F Showers And Thunderstorms Likely 7 mph SE 71%
Sunday 72°F Showers And Thunderstorms 7 to 10 mph SW 89%
Sunday Night 50°F Chance Rain Showers then Mostly Cloudy 8 to 12 mph NE 53%
Monday 66°F Mostly Cloudy 12 mph NE 11%
Monday Night 49°F Chance Rain Showers 10 to 14 mph NE 47%
Tuesday 62°F Chance Rain Showers 16 mph E 47%
Tuesday Night 48°F Rain Showers Likely 18 mph E 57%
Wednesday 61°F Rain Showers Likely 15 to 18 mph E 57%
Wednesday Night 49°F Showers And Thunderstorms Likely 16 mph E 62%
Thursday 65°F Showers And Thunderstorms Likely 9 to 14 mph E 61%
Thursday Night 48°F Slight Chance Rain Showers 6 to 9 mph E 19%
Friday 68°F Slight Chance Rain Showers 9 mph NE 19%

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

Nearby towns & communities

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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.