Middletown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middletown, a borough in Dauphin County, Pennsylvania.
This Afternoon
72°F
Partly Sunny
Partly sunny, with a high near 72. South wind around 5 mph.
7-day forecast for Middletown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Partly Sunny | 5 mph S | 2% |
| Tonight | 51°F | Partly Cloudy | 5 mph SE | 2% |
| Wednesday | 76°F | Mostly Sunny | 2 to 10 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Rain Showers Likely | 8 mph S | 66% |
| Thursday | 74°F | Rain Showers | 6 to 10 mph S | 83% |
| Thursday Night | 59°F | Rain Showers Likely | 1 to 6 mph W | 64% |
| Friday | 70°F | Rain Showers Likely | 3 mph NW | 59% |
| Friday Night | 48°F | Chance Rain Showers | 1 to 5 mph NW | 51% |
| Saturday | 64°F | Slight Chance Rain Showers | 5 to 10 mph NW | 16% |
| Saturday Night | 40°F | Partly Cloudy | 5 to 9 mph NW | 14% |
| Sunday | 61°F | Mostly Sunny | 5 to 9 mph W | 8% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 5 to 8 mph W | 21% |
| Monday | 60°F | Slight Chance Rain Showers | 8 to 15 mph W | 22% |
| Monday Night | 38°F | Slight Chance Rain Showers | 5 to 10 mph W | 20% |
Forecast source: National Weather Service (api.weather.gov) for Middletown (40.201, -76.729). Updated through the day.
Growing snapshot for Middletown
Last spring frost
Apr 9
First fall frost
Nov 2
Growing season
206 days
Hardiness zone
7a
More local growing data for Middletown: nearby ZIP 17057 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Middletown Harrisburg Intl Ap, Pa (2 mi from Middletown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.