Mifflintown, PA Weather & Growing Conditions
Tonight
47°F
Mostly Clear then Areas Of Fog
Areas of fog after midnight. Mostly clear, with a low around 47. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Clear then Areas Of Fog | 0 mph | 2% |
| Wednesday | 75°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph SE | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Rain Showers | 2 mph SE | 89% |
| Thursday | 73°F | Rain Showers | 0 to 5 mph S | 83% |
| Thursday Night | 54°F | Mostly Cloudy then Chance Rain Showers | 0 mph | 31% |
| Friday | 68°F | Chance Rain Showers | 0 mph | 40% |
| Friday Night | 45°F | Chance Rain Showers | 0 mph | 37% |
| Saturday | 61°F | Slight Chance Rain Showers | 0 to 6 mph NW | 18% |
| Saturday Night | 38°F | Partly Cloudy | 3 mph NW | 11% |
| Sunday | 59°F | Mostly Sunny | 5 mph W | 8% |
| Sunday Night | 36°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph W | 17% |
| Monday | 59°F | Slight Chance Rain Showers | 3 to 9 mph W | 23% |
| Monday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph W | 21% |
| Tuesday | 62°F | Mostly Sunny | 3 to 10 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mifflintown, PA
Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
7a
Explore more for Mifflintown, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Lewistown, Pa (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.