Newton Hamilton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newton Hamilton, a borough in Mifflin County, Pennsylvania.
Tonight
63°F
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 63. East wind 1 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Newton Hamilton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Rain Showers Likely | 1 to 5 mph E | 58% |
| Sunday | 80°F | Rain Showers | 5 mph S | 97% |
| Sunday Night | 54°F | Showers And Thunderstorms then Mostly Cloudy | 3 mph NW | 88% |
| Monday | 72°F | Partly Sunny then Chance Rain Showers | 3 mph NE | 31% |
| Monday Night | 53°F | Rain Showers Likely | 5 mph NE | 65% |
| Tuesday | 64°F | Rain Showers Likely | 5 mph E | 69% |
| Tuesday Night | 50°F | Rain Showers Likely | 6 mph E | 57% |
| Wednesday | 60°F | Chance Rain Showers | 6 mph E | 53% |
| Wednesday Night | 49°F | Chance Rain Showers | 6 mph E | 36% |
| Thursday | 62°F | Chance Rain Showers | 6 mph NE | 29% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 3 mph NE | 24% |
| Friday | 69°F | Chance Rain Showers | 3 mph N | 26% |
| Friday Night | 49°F | Chance Rain Showers | 3 mph N | 26% |
| Saturday | 72°F | Slight Chance Rain Showers | 5 mph N | 17% |
Forecast source: National Weather Service (api.weather.gov) for Newton Hamilton (40.393, -77.835). Updated through the day.
Growing snapshot for Newton Hamilton
Last spring frost
Apr 19
First fall frost
Oct 28
Growing season
191 days
Hardiness zone
7a
More local growing data for Newton Hamilton: nearby ZIP 17075 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Maitland
Mattawana
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Strodes Mills
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Yeagertown
Climate data from the nearest NOAA station, Raystown Lake 2, Pa (12.7 mi from Newton Hamilton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.