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Avalon, PA Weather & Growing Conditions

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

Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southeast wind around 2 mph.

7-day forecast for Avalon

WhenTempForecastWindPrecip
Overnight 54°F Mostly Clear 2 mph SE 1%
Wednesday 77°F Mostly Cloudy then Slight Chance Light Rain 1 to 10 mph S 23%
Wednesday Night 60°F Light Rain 8 to 12 mph S 94%
Thursday 69°F Slight Chance Light Rain then Partly Sunny 7 to 13 mph SW 16%
Thursday Night 48°F Partly Cloudy 2 to 6 mph SW 1%
Friday 63°F Partly Sunny then Slight Chance Light Rain 2 to 8 mph SW 18%
Friday Night 43°F Chance Light Rain 5 to 8 mph W 34%
Saturday 53°F Chance Light Rain 8 to 12 mph W 30%
Saturday Night 37°F Slight Chance Light Rain 6 to 10 mph W 24%
Sunday 54°F Partly Sunny 6 to 13 mph W 6%
Sunday Night 36°F Partly Cloudy 9 mph W 5%
Monday 55°F Mostly Sunny 7 to 13 mph W 11%
Monday Night 37°F Mostly Clear 6 to 9 mph SW 8%
Tuesday 60°F Mostly Sunny 9 to 14 mph SW 3%

Forecast source: National Weather Service (api.weather.gov) for Avalon (40.501, -80.069). Updated through the day.

Growing snapshot for Avalon

Last spring frost
Apr 24
First fall frost
Oct 27
Growing season
186 days
Hardiness zone
6b

More local growing data for Avalon: nearby ZIP 15202 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Emsworth L/D Ohio Rvr, Pa (0.9 mi from Avalon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.