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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Atkinson Mills
Barrville
Belleville
Burnham
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Highland Park
Juniata Terrace
Lewistown
Longfellow
Lumber City
Maitland
Mattawana
McClure
McVeytown
Newton Hamilton
Potlicker Flats
Reedsville
Siglerville
Strodes Mills
Wagner
Yeagertown
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.