Siglerville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siglerville, a community in Mifflin County, Pennsylvania.
Today
84°F
Sunny
Sunny, with a high near 84. Southeast wind around 1 mph.
7-day forecast for Siglerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 1 mph SE | 0% |
| Tonight | 64°F | Partly Cloudy | 1 mph E | 6% |
| Wednesday | 81°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 3 mph E | 37% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Patchy Fog | 2 mph E | 47% |
| Thursday | 85°F | Patchy Fog then Showers And Thunderstorms | 0 to 3 mph SW | 83% |
| Thursday Night | 70°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 mph W | 83% |
| Friday | 85°F | Showers And Thunderstorms | 0 to 3 mph W | 78% |
| Friday Night | 67°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 mph W | 78% |
| Saturday | 84°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 56% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph W | 56% |
| Sunday | 87°F | Mostly Sunny | 1 to 5 mph W | 13% |
| Sunday Night | 68°F | Partly Cloudy | 3 mph W | 13% |
| Monday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 8 mph W | 25% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 1 to 7 mph W | 25% |
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 Aug 4, 2026.