Sugar Grove, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sugar Grove, a borough in Warren County, Pennsylvania.
Tonight
50°F
Mostly Cloudy then Patchy Fog
Patchy fog after 2am. Mostly cloudy, with a low around 50. Northeast wind around 5 mph.
7-day forecast for Sugar Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Cloudy then Patchy Fog | 5 mph NE | 1% |
| Saturday | 71°F | Partly Sunny | 5 mph SE | 13% |
| Saturday Night | 58°F | Showers And Thunderstorms | 7 mph SE | 86% |
| Sunday | 70°F | Showers And Thunderstorms | 5 to 8 mph W | 82% |
| Sunday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 9 mph NE | 44% |
| Monday | 65°F | Mostly Cloudy | 9 mph NE | 10% |
| Monday Night | 47°F | Chance Rain Showers | 10 mph E | 45% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph E | 45% |
| Tuesday Night | 47°F | Showers And Thunderstorms Likely | 13 mph E | 57% |
| Wednesday | 61°F | Rain Showers Likely | 12 mph SE | 57% |
| Wednesday Night | 47°F | Chance Showers And Thunderstorms | 8 to 12 mph SE | 54% |
| Thursday | 64°F | Chance Rain Showers | 8 mph E | 45% |
| Thursday Night | 48°F | Chance Rain Showers | 3 to 7 mph NE | 37% |
| Friday | 67°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Sugar Grove (41.984, -79.340). Updated through the day.
Growing snapshot for Sugar Grove
Last spring frost
May 22
First fall frost
Sep 30
Growing season
131 days
Hardiness zone
5b
More local growing data for Sugar Grove: nearby ZIP 16350 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chandlers Valley 1Se, Pa (2.7 mi from Sugar Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.