Atlas, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Atlas, a community in Northumberland County, Pennsylvania.
Overnight
56°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 56. Northeast wind around 1 mph.
7-day forecast for Atlas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Patchy Fog | 1 mph NE | 0% |
| Tuesday | 82°F | Areas Of Fog then Sunny | 1 mph E | 0% |
| Tuesday Night | 62°F | Mostly Cloudy | 1 mph SE | 3% |
| Wednesday | 79°F | Patchy Fog then Chance Showers And Thunderstorms | 3 mph SE | 54% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 2 mph SE | 52% |
| Thursday | 84°F | Showers And Thunderstorms | 1 to 5 mph S | 83% |
| Thursday Night | 67°F | Showers And Thunderstorms | 2 mph S | 83% |
| Friday | 83°F | Showers And Thunderstorms | 0 to 3 mph SW | 75% |
| Friday Night | 66°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph W | 75% |
| Saturday | 82°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph W | 56% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph SW | 56% |
| Sunday | 83°F | Mostly Sunny | 3 mph W | 11% |
| Sunday Night | 67°F | Mostly Clear | 2 mph SW | 11% |
| Monday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 24% |
Forecast source: National Weather Service (api.weather.gov) for Atlas (40.797, -76.428). Updated through the day.
Growing snapshot for Atlas
Last spring frost
Apr 27
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
6b
More local growing data for Atlas: nearby ZIP 17851 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Allenwood
Dalmatia
Dewart
Edgewood
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Klingerstown
Kulpmont
Lewisburg
Linntown
Locust Gap
Marion Heights
Marshallton
McEwensville
Montandon
Mount Carmel
Northumberland
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Riverside
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Tharptown (Uniontown)
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Climate data from the nearest NOAA station, Bear Gap, Pa (4 mi from Atlas). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.