Middletown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middletown, a community in Northampton County, Pennsylvania.
Overnight
47°F
Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 47. Southwest wind 0 to 5 mph.
7-day forecast for Middletown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Fog | 0 to 5 mph SW | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 2% |
| Wednesday Night | 58°F | Mostly Cloudy | 5 mph S | 10% |
| Thursday | 72°F | Light Rain Likely | 5 to 10 mph S | 69% |
| Thursday Night | 59°F | Light Rain Likely | 0 to 5 mph SW | 66% |
| Friday | 69°F | Light Rain Likely | 0 to 5 mph W | 66% |
| Friday Night | 49°F | Light Rain Likely | 0 mph | 62% |
| Saturday | 65°F | Slight Chance Light Rain | 0 to 5 mph NW | 22% |
| Saturday Night | 40°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 18% |
| Sunday | 61°F | Mostly Sunny | 5 mph W | 14% |
| Sunday Night | 37°F | Slight Chance Light Rain | 5 mph W | 19% |
| Monday | 60°F | Chance Light Rain | 5 to 15 mph NW | 25% |
| Monday Night | 35°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
| Tuesday | 62°F | Slight Chance Light Rain then Mostly Sunny | 5 to 15 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Middletown (40.644, -75.325). Updated through the day.
Growing snapshot for Middletown
Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a
More local growing data for Middletown: nearby ZIP 18020 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Ackermanville
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Bath
Belfast
Chapman
Cherryville
Chestnut Hill
East Bangor
Eastlawn Gardens
Easton
Freemansburg
Glendon
Hellertown
Martins Creek
Morgan Hill
Mount Bethel
Nazareth
Northampton
Old Orchard
Palmer Heights
Pen Argyl
Portland
Raubsville
Roseto
Stockertown
Tatamy
Walnutport
West Easton
Wilson
Wind Gap
Climate data from the nearest NOAA station, Allentown Intl Ap, Pa (6.6 mi from Middletown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.