Harford, PA Weather & Growing Conditions
This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 66 in the afternoon. South wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 8 mph S | 1% |
| Tonight | 57°F | Mostly Cloudy then Rain Showers Likely | 6 to 9 mph S | 55% |
| Thursday | 68°F | Rain Showers | 6 to 9 mph S | 92% |
| Thursday Night | 50°F | Partly Cloudy then Patchy Fog | 1 to 5 mph SW | 14% |
| Friday | 65°F | Patchy Fog then Partly Sunny | 3 mph S | 8% |
| Friday Night | 44°F | Slight Chance Rain Showers | 2 mph W | 24% |
| Saturday | 57°F | Chance Rain Showers | 3 to 7 mph NW | 50% |
| Saturday Night | 37°F | Chance Rain Showers | 7 to 12 mph NW | 50% |
| Sunday | 52°F | Slight Chance Rain Showers then Partly Sunny | 6 to 12 mph NW | 15% |
| Sunday Night | 32°F | Partly Cloudy | 7 mph W | 9% |
| Monday | 53°F | Slight Chance Light Rain | 7 to 10 mph W | 18% |
| Monday Night | 30°F | Slight Chance Light Rain then Partly Cloudy | 6 mph W | 17% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph SW | 8% |
| Tuesday Night | 31°F | Partly Cloudy | 6 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 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 Nov 4, 2026.