Harman US

Apollo, PA Weather & Growing Conditions

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

Tonight
51°F
Mostly Clear
Mostly clear, with a low around 51. Southeast wind 2 to 6 mph.

7-day forecast for Apollo

WhenTempForecastWindPrecip
Tonight 51°F Mostly Clear 2 to 6 mph SE 2%
Wednesday 78°F Partly Sunny 2 to 8 mph SE 4%
Wednesday Night 61°F Light Rain 9 mph S 99%
Thursday 71°F Light Rain Likely 7 to 14 mph SW 59%
Thursday Night 48°F Partly Cloudy 1 to 6 mph SW 6%
Friday 66°F Partly Sunny 1 to 8 mph W 12%
Friday Night 44°F Chance Light Rain 2 to 6 mph NW 29%
Saturday 56°F Chance Light Rain 7 to 13 mph W 30%
Saturday Night 36°F Slight Chance Light Rain then Mostly Cloudy 5 to 10 mph W 24%
Sunday 55°F Partly Sunny then Slight Chance Light Rain 5 to 12 mph SW 18%
Sunday Night 35°F Slight Chance Light Rain 12 mph W 23%
Monday 56°F Chance Light Rain 12 to 18 mph W 32%
Monday Night 35°F Chance Light Rain 10 to 15 mph SW 32%
Tuesday 60°F Mostly Sunny 15 to 21 mph SW 11%

Forecast source: National Weather Service (api.weather.gov) for Apollo (40.585, -79.565). Updated through the day.

Growing snapshot for Apollo

Last spring frost
Apr 29
First fall frost
Oct 20
Growing season
171 days
Hardiness zone
6b

More local growing data for Apollo: nearby ZIP 15673 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Salina 3 W, Pa (5.8 mi from Apollo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.