Harman US

Fallston, PA Weather & Growing Conditions

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

Today
78°F
Mostly Cloudy
Mostly cloudy, with a high near 78. East wind around 3 mph.

7-day forecast for Fallston

WhenTempForecastWindPrecip
Today 78°F Mostly Cloudy 3 mph E 5%
Tonight 64°F Patchy Fog 3 mph SE 76%
Sunday 76°F Showers And Thunderstorms 7 mph SW 95%
Sunday Night 54°F Showers And Thunderstorms Likely 6 to 9 mph N 73%
Monday 67°F Chance Rain Showers 9 mph NE 32%
Monday Night 53°F Rain Showers Likely 10 mph NE 58%
Tuesday 62°F Rain Showers Likely 13 mph E 58%
Tuesday Night 51°F Rain Showers Likely 12 to 15 mph E 62%
Wednesday 63°F Rain Showers Likely 13 mph E 62%
Wednesday Night 51°F Showers And Thunderstorms Likely 8 to 13 mph E 63%
Thursday 65°F Rain Showers Likely 8 mph E 60%
Thursday Night 50°F Slight Chance Rain Showers 3 to 7 mph E 23%
Friday 69°F Slight Chance Rain Showers 7 mph NE 17%
Friday Night 50°F Slight Chance Rain Showers then Partly Cloudy 2 to 7 mph NE 17%

Forecast source: National Weather Service (api.weather.gov) for Fallston (40.727, -80.314). Updated through the day.

Growing snapshot for Fallston

Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
6b

More local growing data for Fallston: nearby ZIP 15010 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

All Pennsylvania locations ›

Climate data from the nearest NOAA station, Beaver Falls 1 Ne, Pa (2.1 mi from Fallston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.