Siglerville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siglerville, a community in Mifflin County, Pennsylvania.
Today
75°F
Mostly Sunny
Mostly sunny. High near 75, with temperatures falling to around 69 in the afternoon. South wind 1 to 7 mph.
7-day forecast for Siglerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 1 to 7 mph S | 1% |
| Tonight | 58°F | Light Rain | 5 mph SE | 97% |
| Thursday | 74°F | Light Rain | 1 to 6 mph SW | 76% |
| Thursday Night | 50°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph W | 15% |
| Friday | 68°F | Partly Sunny | 1 mph W | 13% |
| Friday Night | 44°F | Partly Cloudy | 0 mph | 8% |
| Saturday | 57°F | Slight Chance Light Rain | 1 to 8 mph W | 24% |
| Saturday Night | 37°F | Slight Chance Light Rain | 8 mph W | 16% |
| Sunday | 58°F | Mostly Sunny | 9 mph W | 5% |
| Sunday Night | 35°F | Partly Cloudy | 7 mph W | 6% |
| Monday | 58°F | Mostly Sunny | 7 to 10 mph W | 8% |
| Monday Night | 34°F | Partly Cloudy | 7 mph W | 6% |
| Tuesday | 62°F | Mostly Sunny | 5 to 10 mph W | 2% |
| Tuesday Night | 33°F | Partly Cloudy | 6 mph W | 2% |
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 Nov 4, 2026.