Portland, PA Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 0 mph | 1% |
| Wednesday | 73°F | Sunny | 0 to 5 mph S | 1% |
| Wednesday Night | 55°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph S | 10% |
| Thursday | 70°F | Light Rain | 5 mph S | 81% |
| Thursday Night | 57°F | Light Rain | 0 to 5 mph SW | 78% |
| Friday | 70°F | Chance Light Rain | 0 mph | 54% |
| Friday Night | 48°F | Chance Light Rain | 0 mph | 42% |
| Saturday | 64°F | Mostly Sunny then Chance Light Rain | 0 to 5 mph W | 25% |
| Saturday Night | 40°F | Chance Light Rain | 5 mph W | 25% |
| Sunday | 58°F | Mostly Sunny | 5 mph NW | 8% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph W | 4% |
| Monday | 58°F | Sunny | 5 to 10 mph W | 7% |
| Monday Night | 34°F | Mostly Clear | 0 to 5 mph W | 5% |
| Tuesday | 62°F | Sunny | 5 to 10 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portland, PA
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
6b
Explore more for Portland, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Belvidere Brg, Nj (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.