Blain, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blain, a borough in Perry County, Pennsylvania.
This Afternoon
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 2 mph.
7-day forecast for Blain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Mostly Sunny | 2 mph E | 0% |
| Tonight | 65°F | Mostly Cloudy | 2 mph E | 6% |
| Wednesday | 83°F | Slight Chance Showers And Thunderstorms | 3 mph E | 36% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Patchy Fog | 2 mph SE | 48% |
| Thursday | 87°F | Patchy Fog then Showers And Thunderstorms Likely | 1 to 5 mph S | 71% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 mph SW | 71% |
| Friday | 87°F | Showers And Thunderstorms Likely | 0 to 3 mph SW | 58% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 2 mph SW | 58% |
| Saturday | 86°F | Partly Sunny then Showers And Thunderstorms Likely | 1 to 5 mph W | 56% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 mph W | 56% |
| Sunday | 88°F | Mostly Sunny | 3 mph W | 14% |
| Sunday Night | 68°F | Partly Cloudy | 3 mph SW | 14% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 19% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 6 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Blain (40.337, -77.512). Updated through the day.
Growing snapshot for Blain
Last spring frost
Apr 18
First fall frost
Oct 26
Growing season
191 days
Hardiness zone
7a
More local growing data for Blain: nearby ZIP 17006 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Bloomfield
Duncannon
Halifax
Ickesburg
Landisburg
Liverpool
Loysville
Millerstown
New Buffalo
Newport
Climate data from the nearest NOAA station, Bloserville 1 N, Pa (8.4 mi from Blain). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.