Harford, PA Weather & Growing Conditions
Overnight
55°F
Rain Showers
Rain showers. Cloudy, with a low around 55. Southeast wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Rain Showers | 6 to 9 mph SE | 92% |
| Sunday | 64°F | Rain Showers | 2 to 9 mph S | 100% |
| Sunday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 3 to 7 mph N | 32% |
| Monday | 67°F | Mostly Cloudy | 7 mph N | 0% |
| Monday Night | 44°F | Mostly Cloudy then Chance Rain Showers | 5 mph NE | 34% |
| Tuesday | 61°F | Chance Rain Showers | 7 mph E | 34% |
| Tuesday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph E | 20% |
| Wednesday | 61°F | Partly Sunny | 9 mph E | 14% |
| Wednesday Night | 42°F | Slight Chance Rain Showers | 7 mph E | 18% |
| Thursday | 62°F | Slight Chance Rain Showers | 7 mph NE | 24% |
| Thursday Night | 42°F | Slight Chance Rain Showers | 5 mph NE | 21% |
| Friday | 64°F | Chance Rain Showers | 5 to 8 mph N | 25% |
| Friday Night | 43°F | Slight Chance Rain Showers | 5 to 8 mph N | 17% |
| Saturday | 67°F | Slight Chance Rain Showers then Mostly Sunny | 8 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harford, PA
Last spring frost
May 14
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
6a
Explore more for Harford, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Pleasant Mt 1 W, Pa (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.