Newton Hamilton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newton Hamilton, a borough in Mifflin County, Pennsylvania.
Today
77°F
Patchy Fog then Mostly Sunny
Patchy fog before 9am. Mostly sunny. High near 77, with temperatures falling to around 70 in the afternoon. Southeast wind 1 to 6 mph.
7-day forecast for Newton Hamilton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Fog then Mostly Sunny | 1 to 6 mph SE | 1% |
| Tonight | 60°F | Light Rain | 5 mph SE | 92% |
| Thursday | 76°F | Light Rain Likely | 1 to 5 mph SW | 66% |
| Thursday Night | 49°F | Mostly Cloudy | 1 mph W | 10% |
| Friday | 70°F | Partly Sunny | 1 mph NW | 13% |
| Friday Night | 43°F | Partly Cloudy | 1 mph W | 7% |
| Saturday | 59°F | Slight Chance Light Rain | 1 to 7 mph W | 18% |
| Saturday Night | 36°F | Slight Chance Light Rain then Mostly Cloudy | 5 mph W | 17% |
| Sunday | 60°F | Mostly Sunny | 7 mph W | 6% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 60°F | Mostly Sunny | 3 to 8 mph W | 6% |
| Monday Night | 33°F | Mostly Clear | 3 mph W | 3% |
| Tuesday | 64°F | Sunny | 2 to 7 mph W | 2% |
| Tuesday Night | 33°F | Partly Cloudy | 3 mph W | 1% |
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
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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 Nov 4, 2026.