Mattawana, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mattawana, a community in Mifflin County, Pennsylvania.
Today
86°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny, with a high near 86. East wind around 1 mph.
7-day forecast for Mattawana
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Sunny | 1 mph E | 0% |
| Tonight | 64°F | Mostly Cloudy then Patchy Fog | 1 mph NE | 6% |
| Wednesday | 85°F | Patchy Fog then Chance Showers And Thunderstorms | 2 mph E | 29% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms then Areas Of Fog | 2 mph E | 46% |
| Thursday | 89°F | Areas Of Fog then Showers And Thunderstorms | 0 to 3 mph SW | 81% |
| Thursday Night | 68°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 mph SW | 81% |
| Friday | 89°F | Showers And Thunderstorms Likely | 2 mph W | 72% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 1 mph W | 72% |
| Saturday | 87°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 3 mph W | 57% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 1 mph W | 57% |
| Sunday | 89°F | Mostly Sunny | 0 to 3 mph W | 14% |
| Sunday Night | 69°F | Partly Cloudy | 2 mph SW | 14% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph W | 22% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 22% |
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 Aug 4, 2026.