Harman US

St. Petersburg, PA Weather & Growing Conditions

This Afternoon
74°F
Slight Chance Rain Showers
A slight chance of rain showers before 2pm. Mostly cloudy, with a high near 74. Southeast wind around 5 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 74°F Slight Chance Rain Showers 5 mph SE 17%
Tonight 60°F Showers And Thunderstorms 5 mph SE 76%
Sunday 74°F Showers And Thunderstorms 7 mph SW 93%
Sunday Night 49°F Slight Chance Rain Showers 7 mph N 23%
Monday 67°F Mostly Cloudy then Slight Chance Rain Showers 8 mph NE 23%
Monday Night 48°F Chance Rain Showers 7 to 10 mph E 48%
Tuesday 61°F Chance Rain Showers 12 mph E 52%
Tuesday Night 47°F Rain Showers Likely 13 mph E 61%
Wednesday 59°F Rain Showers Likely 13 mph E 61%
Wednesday Night 47°F Chance Rain Showers 12 mph E 46%
Thursday 64°F Chance Rain Showers 9 mph E 46%
Thursday Night 47°F Mostly Cloudy 6 mph E 14%
Friday 68°F Partly Sunny 6 mph NE 13%
Friday Night 46°F Partly Cloudy 6 mph N 11%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for St. Petersburg, PA

Last spring frost
May 9
First fall frost
Oct 11
Growing season
154 days
Hardiness zone
6a

Explore more for St. Petersburg, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Clarion 3 Sw, Pa (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.