Mill Hall, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mill Hall, a borough in Clinton County, Pennsylvania.
Tonight
51°F
Partly Cloudy then Areas Of Fog
Areas of fog after 1am. Partly cloudy, with a low around 51. North wind around 3 mph.
7-day forecast for Mill Hall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy then Areas Of Fog | 3 mph N | 0% |
| Saturday | 74°F | Areas Of Fog then Partly Sunny | 3 mph NE | 3% |
| Saturday Night | 60°F | Mostly Cloudy then Rain Showers | 3 mph SE | 79% |
| Sunday | 73°F | Showers And Thunderstorms | 5 mph SW | 99% |
| Sunday Night | 54°F | Rain Showers | 6 mph N | 82% |
| Monday | 69°F | Chance Rain Showers | 7 mph NE | 27% |
| Monday Night | 51°F | Chance Rain Showers | 6 mph NE | 54% |
| Tuesday | 63°F | Rain Showers Likely | 7 mph E | 64% |
| Tuesday Night | 48°F | Rain Showers Likely | 5 to 8 mph E | 64% |
| Wednesday | 61°F | Chance Rain Showers | 7 mph E | 50% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 6 mph E | 46% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 5 mph NE | 43% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 3 mph NE | 38% |
| Friday | 70°F | Partly Sunny | 2 to 6 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for Mill Hall (41.105, -77.488). Updated through the day.
Growing snapshot for Mill Hall
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
173 days
Hardiness zone
6b
More local growing data for Mill Hall: nearby ZIP 17751 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Lock Haven Sewage Plt, Pa (4.6 mi from Mill Hall). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.