Simpson, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Simpson, a community in Lackawanna County, Pennsylvania.
This Afternoon
84°F
Sunny
Sunny, with a high near 84. Southwest wind around 3 mph.
7-day forecast for Simpson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Sunny | 3 mph SW | 0% |
| Tonight | 60°F | Mostly Cloudy | 3 mph SE | 0% |
| Wednesday | 84°F | Mostly Sunny | 1 to 6 mph SE | 10% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 to 6 mph S | 27% |
| Thursday | 87°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 67% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 6 mph SW | 67% |
| Friday | 86°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph W | 68% |
| Friday Night | 66°F | Showers And Thunderstorms Likely | 3 mph SW | 68% |
| Saturday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 8 mph SW | 54% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 54% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 19% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 21% |
| Monday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 10 mph W | 24% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov) for Simpson (41.595, -75.480). Updated through the day.
Growing snapshot for Simpson
Last spring frost
May 14
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
6a
More local growing data for Simpson: nearby ZIP 18407 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pleasant Mt 1 W, Pa (11.2 mi from Simpson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.