Jamestown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jamestown, a community in Cambria County, Pennsylvania.
This Afternoon
73°F
Sunny
Sunny, with a high near 73. South wind around 7 mph.
7-day forecast for Jamestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 7 mph S | 1% |
| Tonight | 49°F | Mostly Clear | 6 mph SE | 1% |
| Wednesday | 72°F | Partly Sunny | 3 to 10 mph SE | 2% |
| Wednesday Night | 58°F | Rain Showers | 6 to 9 mph S | 99% |
| Thursday | 70°F | Rain Showers Likely | 6 to 10 mph SW | 64% |
| Thursday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph W | 18% |
| Friday | 64°F | Chance Rain Showers | 1 to 5 mph W | 28% |
| Friday Night | 43°F | Chance Rain Showers | 6 mph NW | 25% |
| Saturday | 54°F | Chance Rain Showers | 6 to 13 mph W | 29% |
| Saturday Night | 36°F | Chance Rain Showers then Mostly Cloudy | 7 to 10 mph W | 29% |
| Sunday | 53°F | Partly Sunny | 8 to 12 mph W | 12% |
| Sunday Night | 35°F | Partly Cloudy then Slight Chance Rain Showers | 10 to 14 mph W | 21% |
| Monday | 53°F | Chance Rain Showers | 14 to 17 mph W | 31% |
| Monday Night | 37°F | Chance Rain Showers | 10 to 14 mph W | 31% |
Forecast source: National Weather Service (api.weather.gov) for Jamestown (40.404, -78.659). Updated through the day.
Growing snapshot for Jamestown
Last spring frost
May 17
First fall frost
Oct 2
Growing season
136 days
Hardiness zone
6a
More local growing data for Jamestown: nearby ZIP 15925 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Ebensburg Sewage Plt, Pa (6.3 mi from Jamestown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.