Slovan, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slovan, a community in Washington County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 8 mph.
7-day forecast for Slovan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 8 mph N | 10% |
| Tonight | 57°F | Partly Cloudy | 5 to 8 mph NE | 10% |
| Saturday | 78°F | Partly Sunny | 5 mph E | 6% |
| Saturday Night | 65°F | Mostly Cloudy then Showers And Thunderstorms Likely | 3 to 8 mph SE | 58% |
| Sunday | 77°F | Showers And Thunderstorms | 9 mph SW | 94% |
| Sunday Night | 59°F | Showers And Thunderstorms | 7 to 10 mph N | 94% |
| Monday | 68°F | Chance Rain Showers | 12 mph NE | 38% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 14 mph NE | 60% |
| Tuesday | 65°F | Showers And Thunderstorms Likely | 14 mph E | 67% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 17 mph E | 67% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 15 mph E | 67% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 53% |
| Thursday | 64°F | Chance Rain Showers | 8 to 12 mph E | 40% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 5 to 9 mph NE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Slovan (40.360, -80.385). Updated through the day.
Growing snapshot for Slovan
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6b
More local growing data for Slovan: nearby ZIP 15078 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Intl Ap, Pa (12.5 mi from Slovan). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.