Mattawana, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mattawana, a community in Mifflin County, Pennsylvania.
This Afternoon
75°F
Mostly Cloudy
Mostly cloudy, with a high near 75. East wind around 2 mph.
7-day forecast for Mattawana
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Cloudy | 2 mph E | 2% |
| Tonight | 61°F | Rain Showers | 1 to 5 mph E | 80% |
| Sunday | 76°F | Showers And Thunderstorms | 2 to 6 mph S | 85% |
| Sunday Night | 54°F | Showers And Thunderstorms Likely | 5 mph NW | 64% |
| Monday | 70°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 17% |
| Monday Night | 50°F | Rain Showers Likely | 6 mph NE | 58% |
| Tuesday | 62°F | Rain Showers Likely | 6 mph E | 60% |
| Tuesday Night | 48°F | Chance Rain Showers | 7 mph E | 54% |
| Wednesday | 60°F | Chance Rain Showers | 7 mph E | 51% |
| Wednesday Night | 48°F | Chance Rain Showers | 6 mph E | 42% |
| Thursday | 63°F | Chance Rain Showers | 6 mph NE | 40% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 3 mph NE | 36% |
| Friday | 69°F | Chance Rain Showers | 5 mph N | 27% |
| Friday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Mattawana (40.497, -77.727). Updated through the day.
Growing snapshot for Mattawana
Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
7a
More local growing data for Mattawana: nearby ZIP 17054 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Lewistown, Pa (10.4 mi from Mattawana). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.