Simpson, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Simpson, a community in Lackawanna County, Pennsylvania.
This Afternoon
69°F
Partly Sunny
Partly sunny, with a high near 69. Southwest wind around 5 mph.
7-day forecast for Simpson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Partly Sunny | 5 mph SW | 3% |
| Tonight | 50°F | Partly Cloudy | 5 mph SW | 3% |
| Wednesday | 74°F | Mostly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 58°F | Mostly Cloudy then Chance Rain Showers | 5 to 8 mph S | 33% |
| Thursday | 70°F | Rain Showers | 7 to 10 mph S | 94% |
| Thursday Night | 56°F | Chance Rain Showers | 1 to 6 mph SW | 45% |
| Friday | 68°F | Chance Rain Showers | 3 mph NW | 52% |
| Friday Night | 47°F | Chance Light Rain | 2 mph NW | 52% |
| Saturday | 61°F | Chance Light Rain | 3 to 9 mph NW | 34% |
| Saturday Night | 40°F | Chance Light Rain | 8 mph NW | 29% |
| Sunday | 57°F | Partly Sunny | 9 mph W | 14% |
| Sunday Night | 36°F | Slight Chance Light Rain | 8 mph W | 20% |
| Monday | 56°F | Chance Light Rain | 8 to 15 mph NW | 30% |
| Monday Night | 35°F | Chance Light Rain | 9 mph W | 30% |
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
Nearby towns & communities
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Dunmore
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Factoryville
Glenburn
Gouldsboro
Jermyn
Jessup
Mayfield
Moosic
Moscow
Mount Cobb
Old Forge
Olyphant
Scranton
Taylor
Throop
Waverly
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 Nov 3, 2026.