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Milroy, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Milroy, a community in Mifflin County, Pennsylvania.

Tonight
50°F
Partly Cloudy then Areas Of Fog
Areas of fog after midnight. Partly cloudy, with a low around 50. North wind 0 to 3 mph.

7-day forecast for Milroy

WhenTempForecastWindPrecip
Tonight 50°F Partly Cloudy then Areas Of Fog 0 to 3 mph N 0%
Saturday 73°F Patchy Fog then Partly Sunny 2 mph E 3%
Saturday Night 61°F Mostly Cloudy then Rain Showers Likely 3 mph SE 73%
Sunday 73°F Showers And Thunderstorms 3 mph S 98%
Sunday Night 56°F Showers And Thunderstorms 2 to 6 mph N 90%
Monday 68°F Chance Rain Showers 6 mph NE 30%
Monday Night 53°F Rain Showers Likely 7 mph NE 61%
Tuesday 61°F Rain Showers Likely 7 mph E 65%
Tuesday Night 49°F Rain Showers Likely 7 mph E 62%
Wednesday 59°F Chance Rain Showers 7 mph E 54%
Wednesday Night 48°F Chance Showers And Thunderstorms 5 mph E 51%
Thursday 61°F Chance Showers And Thunderstorms 5 mph NE 51%
Thursday Night 50°F Chance Rain Showers 2 mph NE 38%
Friday 68°F Slight Chance Rain Showers then Partly Sunny 3 mph N 20%

Forecast source: National Weather Service (api.weather.gov) for Milroy (40.719, -77.590). Updated through the day.

Growing snapshot for Milroy

Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
6b

More local growing data for Milroy: nearby ZIP 17084 weather · frost dates · planting calendar · Pennsylvania frost dates

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Climate data from the nearest NOAA station, Lewistown, Pa (6.9 mi from Milroy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.