Mattawana, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mattawana, a community in Mifflin County, Pennsylvania.
Overnight
45°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 45. Wind around 0 mph.
7-day forecast for Mattawana
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Patchy Fog | 0 mph | 0% |
| Wednesday | 77°F | Patchy Fog then Mostly Sunny | 0 to 7 mph SE | 1% |
| Wednesday Night | 59°F | Light Rain | 3 mph SE | 93% |
| Thursday | 76°F | Light Rain Likely | 1 to 6 mph SW | 69% |
| Thursday Night | 49°F | Mostly Cloudy | 1 mph W | 13% |
| Friday | 70°F | Partly Sunny | 1 mph NW | 13% |
| Friday Night | 43°F | Partly Cloudy | 0 mph | 8% |
| Saturday | 59°F | Slight Chance Light Rain | 0 to 8 mph W | 19% |
| Saturday Night | 36°F | Slight Chance Light Rain then Mostly Cloudy | 6 mph W | 17% |
| Sunday | 60°F | Mostly Sunny | 5 to 8 mph W | 5% |
| Sunday Night | 34°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 60°F | Mostly Sunny | 3 to 10 mph W | 6% |
| Monday Night | 33°F | Mostly Clear | 1 to 5 mph W | 3% |
| Tuesday | 64°F | Mostly Sunny | 2 to 9 mph W | 2% |
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 Nov 4, 2026.