Steelton, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Steelton, a borough in Dauphin County, Pennsylvania.
Today
75°F
Patchy Fog then Mostly Sunny
Patchy fog before 7am. Mostly sunny, with a high near 75. South wind 1 to 10 mph.
7-day forecast for Steelton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Fog then Mostly Sunny | 1 to 10 mph S | 1% |
| Tonight | 61°F | Mostly Cloudy then Light Rain Likely | 6 to 9 mph SE | 60% |
| Thursday | 74°F | Light Rain | 6 to 10 mph S | 81% |
| Thursday Night | 57°F | Chance Light Rain | 1 to 6 mph W | 47% |
| Friday | 69°F | Chance Light Rain | 2 mph NW | 29% |
| Friday Night | 48°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 19% |
| Saturday | 61°F | Mostly Sunny | 6 to 12 mph NW | 12% |
| Saturday Night | 42°F | Partly Cloudy | 10 mph W | 12% |
| Sunday | 60°F | Mostly Sunny | 10 mph NW | 4% |
| Sunday Night | 39°F | Mostly Clear | 8 mph W | 4% |
| Monday | 59°F | Sunny | 8 to 13 mph W | 4% |
| Monday Night | 38°F | Mostly Clear | 3 to 8 mph W | 3% |
| Tuesday | 63°F | Sunny | 5 to 12 mph W | 1% |
| Tuesday Night | 39°F | Mostly Clear | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Steelton (40.226, -76.825). Updated through the day.
Growing snapshot for Steelton
Last spring frost
Apr 9
First fall frost
Nov 1
Growing season
205 days
Hardiness zone
7a
More local growing data for Steelton: nearby ZIP 17113 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Harrisburg Cptl Cy Ap, Pa (1.8 mi from Steelton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.