Harford, PA Weather & Growing Conditions
Today
71°F
Mostly Sunny
Mostly sunny, with a high near 71. Southwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 9 mph SW | 2% |
| Tonight | 56°F | Mostly Cloudy then Chance Light Rain | 6 to 9 mph S | 32% |
| Thursday | 68°F | Light Rain | 6 to 9 mph S | 93% |
| Thursday Night | 52°F | Chance Light Rain | 0 to 5 mph SW | 27% |
| Friday | 66°F | Slight Chance Light Rain | 0 to 3 mph SW | 18% |
| Friday Night | 44°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph NW | 18% |
| Saturday | 58°F | Partly Sunny then Chance Light Rain | 2 to 7 mph W | 45% |
| Saturday Night | 38°F | Chance Light Rain | 8 mph NW | 45% |
| Sunday | 52°F | Slight Chance Light Rain then Partly Sunny | 8 mph NW | 17% |
| Sunday Night | 33°F | Partly Cloudy | 7 mph W | 10% |
| Monday | 54°F | Slight Chance Light Rain | 7 to 12 mph W | 18% |
| Monday Night | 31°F | Slight Chance Light Rain then Partly Cloudy | 6 mph W | 17% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Tuesday Night | 31°F | Partly Cloudy | 7 mph W | 12% |
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 Nov 4, 2026.