Sunbury, PA Weather & Growing Conditions
Tonight
49°F
Mostly Clear then Areas Of Fog
Areas of fog after midnight. Mostly clear, with a low around 49. South wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Clear then Areas Of Fog | 1 mph S | 2% |
| Wednesday | 72°F | Areas Of Fog then Mostly Sunny | 0 to 8 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Rain Showers | 7 mph S | 76% |
| Thursday | 71°F | Rain Showers | 3 to 8 mph S | 88% |
| Thursday Night | 55°F | Chance Rain Showers | 0 to 3 mph SW | 38% |
| Friday | 67°F | Chance Rain Showers | 1 mph NW | 42% |
| Friday Night | 45°F | Chance Rain Showers | 1 mph NW | 42% |
| Saturday | 62°F | Slight Chance Rain Showers | 1 to 7 mph NW | 18% |
| Saturday Night | 37°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph NW | 17% |
| Sunday | 59°F | Mostly Sunny | 1 to 6 mph W | 9% |
| Sunday Night | 35°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph W | 17% |
| Monday | 59°F | Chance Rain Showers | 3 to 10 mph NW | 25% |
| Monday Night | 34°F | Slight Chance Rain Showers | 6 mph SW | 22% |
| Tuesday | 61°F | Mostly Sunny | 5 to 10 mph SW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sunbury, PA
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
6b
Explore more for Sunbury, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Sunbury, Pa (1.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.