Siglerville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siglerville, a community in Mifflin County, Pennsylvania.
This Afternoon
79°F
Mostly Sunny
Mostly sunny, with a high near 79. North wind around 3 mph.
7-day forecast for Siglerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Sunny | 3 mph N | 0% |
| Tonight | 51°F | Areas Of Fog | 3 mph NE | 0% |
| Saturday | 73°F | Patchy Fog then Partly Sunny | 2 mph E | 3% |
| Saturday Night | 61°F | Mostly Cloudy then Rain Showers Likely | 3 mph SE | 74% |
| Sunday | 73°F | Showers And Thunderstorms | 3 mph SW | 98% |
| Sunday Night | 56°F | Showers And Thunderstorms | 5 mph N | 89% |
| Monday | 68°F | Chance Rain Showers | 5 mph NE | 30% |
| Monday Night | 53°F | Rain Showers Likely | 3 to 8 mph NE | 61% |
| Tuesday | 61°F | Rain Showers Likely | 8 mph E | 65% |
| Tuesday Night | 48°F | Rain Showers Likely | 8 mph E | 63% |
| Wednesday | 59°F | Chance Rain Showers | 5 to 8 mph E | 53% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 6 mph E | 51% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 6 mph NE | 50% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 3 mph NE | 38% |
Forecast source: National Weather Service (api.weather.gov) for Siglerville (40.737, -77.532). Updated through the day.
Growing snapshot for Siglerville
Last spring frost
May 5
First fall frost
Oct 6
Growing season
153 days
Hardiness zone
6b
More local growing data for Siglerville: nearby ZIP 17063 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Millheim, Pa (8.6 mi from Siglerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.