Slovan, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slovan, a community in Washington County, Pennsylvania.
Tonight
56°F
Mostly Clear
Mostly clear, with a low around 56. South wind around 7 mph.
7-day forecast for Slovan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Clear | 7 mph S | 3% |
| Wednesday | 75°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 12 mph S | 16% |
| Wednesday Night | 60°F | Light Rain | 9 to 15 mph S | 99% |
| Thursday | 69°F | Chance Light Rain then Mostly Sunny | 8 to 14 mph SW | 25% |
| Thursday Night | 47°F | Partly Cloudy | 1 to 7 mph SW | 3% |
| Friday | 64°F | Partly Sunny | 1 to 8 mph W | 9% |
| Friday Night | 44°F | Slight Chance Light Rain | 6 mph NW | 24% |
| Saturday | 54°F | Chance Light Rain | 7 to 12 mph W | 27% |
| Saturday Night | 37°F | Chance Light Rain then Mostly Cloudy | 3 to 8 mph W | 26% |
| Sunday | 55°F | Partly Sunny | 3 to 10 mph SW | 14% |
| Sunday Night | 35°F | Slight Chance Light Rain | 10 mph W | 20% |
| Monday | 56°F | Chance Light Rain | 9 to 14 mph W | 26% |
| Monday Night | 37°F | Chance Light Rain then Partly Cloudy | 9 to 14 mph SW | 26% |
| Tuesday | 59°F | Mostly Sunny | 13 to 17 mph SW | 7% |
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 Nov 4, 2026.