Addison, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Addison, a borough in Somerset County, Pennsylvania.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. Southeast wind around 5 mph.
7-day forecast for Addison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 5 mph SE | 1% |
| Tonight | 51°F | Mostly Clear | 3 mph SE | 2% |
| Wednesday | 74°F | Partly Sunny | 2 to 7 mph SE | 3% |
| Wednesday Night | 60°F | Rain Showers | 3 to 7 mph S | 96% |
| Thursday | 68°F | Rain Showers Likely | 3 to 8 mph SW | 67% |
| Thursday Night | 52°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SW | 23% |
| Friday | 64°F | Chance Rain Showers | 0 to 5 mph W | 26% |
| Friday Night | 44°F | Chance Rain Showers | 5 mph NW | 33% |
| Saturday | 53°F | Chance Rain Showers | 6 to 9 mph W | 37% |
| Saturday Night | 38°F | Chance Rain Showers | 5 to 8 mph W | 35% |
| Sunday | 52°F | Slight Chance Rain Showers | 5 to 9 mph W | 18% |
| Sunday Night | 37°F | Chance Rain Showers | 13 mph W | 31% |
| Monday | 52°F | Chance Rain Showers | 15 mph W | 37% |
| Monday Night | 38°F | Chance Rain Showers | 14 mph W | 37% |
Forecast source: National Weather Service (api.weather.gov) for Addison (39.745, -79.334). Updated through the day.
Growing snapshot for Addison
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
171 days
Hardiness zone
6a
More local growing data for Addison: nearby ZIP 15411 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Acosta
Benson
Berlin
Boswell
Cairnbrook
Callimont
Casselman
Central City
Confluence
Davidsville
Edie
Friedens
Garrett
Gray
Hooversville
Indian Lake
Jennerstown
Jerome
Meyersdale
New Baltimore
New Centerville
Paint
Riverside
Rockwood
Salisbury
Shanksville
Somerset
Stoystown
Ursina
Wellersburg
Climate data from the nearest NOAA station, Confluence 1 Sw Dam, Pa (3.8 mi from Addison). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.