Harford, PA Weather & Growing Conditions
Tonight
53°F
Rain Showers
Rain showers. Cloudy, with a low around 53. Southeast wind 5 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 |
|---|---|---|---|---|
| Tonight | 53°F | Rain Showers | 5 to 9 mph SE | 92% |
| Sunday | 67°F | Rain Showers | 5 to 10 mph S | 98% |
| Sunday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 5 to 8 mph N | 43% |
| Monday | 66°F | Partly Sunny | 8 mph N | 1% |
| Monday Night | 43°F | Mostly Cloudy then Chance Rain Showers | 6 mph NE | 26% |
| Tuesday | 61°F | Chance Rain Showers | 5 mph E | 26% |
| Tuesday Night | 42°F | Mostly Cloudy | 6 mph E | 9% |
| Wednesday | 60°F | Partly Sunny | 8 mph E | 6% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph E | 21% |
| Thursday | 60°F | Slight Chance Rain Showers | 7 mph E | 21% |
| Thursday Night | 41°F | Chance Rain Showers | 5 mph NE | 30% |
| Friday | 63°F | Chance Rain Showers | 5 to 8 mph N | 30% |
| Friday Night | 43°F | Chance Rain Showers | 6 to 9 mph N | 25% |
| Saturday | 66°F | Slight Chance Rain Showers | 9 mph N | 22% |
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 2
Growing season
141 days
Hardiness zone
6a
Explore more for Harford, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Montrose, Pa (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.