Saxonburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Saxonburg, a borough in Butler County, Pennsylvania.
This Afternoon
76°F
Mostly Sunny
Mostly sunny, with a high near 76. North wind around 7 mph.
7-day forecast for Saxonburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Mostly Sunny | 7 mph N | 10% |
| Tonight | 56°F | Partly Cloudy | 7 mph NE | 10% |
| Saturday | 77°F | Partly Sunny | 7 mph E | 6% |
| Saturday Night | 62°F | Mostly Cloudy then Showers And Thunderstorms Likely | 7 mph SE | 69% |
| Sunday | 76°F | Showers And Thunderstorms | 6 to 9 mph SW | 95% |
| Sunday Night | 57°F | Showers And Thunderstorms | 7 to 10 mph N | 95% |
| Monday | 68°F | Chance Rain Showers | 12 mph NE | 31% |
| Monday Night | 55°F | Showers And Thunderstorms Likely | 14 mph E | 56% |
| Tuesday | 65°F | Showers And Thunderstorms Likely | 15 mph E | 66% |
| Tuesday Night | 52°F | Showers And Thunderstorms Likely | 17 mph E | 64% |
| Wednesday | 62°F | Showers And Thunderstorms Likely | 15 mph E | 64% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 12 to 15 mph E | 52% |
| Thursday | 64°F | Chance Rain Showers | 12 mph E | 41% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 5 to 9 mph NE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Saxonburg (40.751, -79.815). Updated through the day.
Growing snapshot for Saxonburg
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6b
More local growing data for Saxonburg: nearby ZIP 16056 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Butler 2 Sw, Pa (8.7 mi from Saxonburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.