Lake Arthur Estates, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Arthur Estates, a community in Butler County, Pennsylvania.
Overnight
56°F
Mostly Cloudy
Mostly cloudy, with a low around 56. East wind around 6 mph.
7-day forecast for Lake Arthur Estates
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 6 mph E | 1% |
| Saturday | 76°F | Mostly Cloudy | 6 mph E | 4% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph SE | 83% |
| Sunday | 75°F | Showers And Thunderstorms | 8 mph SW | 90% |
| Sunday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 9 mph N | 43% |
| Monday | 67°F | Chance Rain Showers | 9 mph NE | 28% |
| Monday Night | 50°F | Rain Showers Likely | 8 to 12 mph E | 55% |
| Tuesday | 62°F | Rain Showers Likely | 14 mph E | 55% |
| Tuesday Night | 49°F | Rain Showers Likely | 15 mph E | 58% |
| Wednesday | 61°F | Rain Showers Likely | 15 mph E | 58% |
| Wednesday Night | 49°F | Showers And Thunderstorms Likely | 13 mph E | 63% |
| Thursday | 65°F | Rain Showers Likely | 8 to 12 mph E | 61% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 5 to 8 mph E | 21% |
| Friday | 68°F | Slight Chance Rain Showers | 7 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Lake Arthur Estates (40.962, -80.148). Updated through the day.
Growing snapshot for Lake Arthur Estates
Last spring frost
May 7
First fall frost
Oct 14
Growing season
158 days
Hardiness zone
6a
More local growing data for Lake Arthur Estates: nearby ZIP 16051 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Slippery Rock 1 Ssw, Pa (8.9 mi from Lake Arthur Estates). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.