Perry County weather, town by town
10 places in Perry County, Pennsylvania, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1840 to 2026. Station extremes, not official state records.
Perry County Weather Facts
Perry County has 10 places on myweatherrock (8 boroughs, 2 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 106°F at Lewistown on July 23, 2011. The coldest night is -27°F at Selinsgrove 2 S on January 14, 1912. The wettest day brought 7.5 inches of rain at Carlisle Wtp on October 12, 1845. The biggest single-day snow measured 30 inches at Pine Grove Furnace on January 8, 1996. Those are station measurements from NOAA's daily records, 1840 to 2026, not official state records. By area the largest place is Marysville, about 2 square miles.
About Perry County weather
The map on the Now tab shows every Perry County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 10 Perry County towns with station normals, the warmest month is July, when the day usually reaches 86°F, and the coldest is January, when the night usually falls to 21°F. May is the wettest, with rain on about 14 days. January nights run from about 19°F in Liverpool to 22°F in Duncannon.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Perry County weather records
Measured at the NOAA stations serving these towns, daily records 1840 to 2026. Station extremes, not official state records.
Common questions about Perry County weather
- What is the hottest temperature recorded at a Perry County station?
- 106°F at Lewistown on July 23, 2011, in the NOAA daily station records myweatherrock holds (1840 to 2026).
- What is the coldest temperature recorded at a Perry County station?
- -27°F at Selinsgrove 2 S on January 14, 1912.
- What is the most rain a Perry County station has measured in one day?
- 7.5 inches at Carlisle Wtp on October 12, 1845.
- What is the biggest one-day snowfall at a Perry County station?
- 30 inches at Pine Grove Furnace on January 8, 1996.
- How many Perry County towns have a weather page here?
- 10: 8 boroughs, 2 census-designated places. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Perry County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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