Denver, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Denver, a borough in Lancaster County, Pennsylvania.
This Afternoon
81°F
Mostly Sunny
Mostly sunny, with a high near 81. North wind around 10 mph.
7-day forecast for Denver
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 54°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 7 mph E | 2% |
| Saturday Night | 61°F | Mostly Cloudy then Chance Rain Showers | 6 to 9 mph SE | 29% |
| Sunday | 75°F | Showers And Thunderstorms | 9 to 13 mph S | 90% |
| Sunday Night | 61°F | Showers And Thunderstorms | 6 to 9 mph NW | 90% |
| Monday | 70°F | Chance Rain Showers | 12 mph NE | 37% |
| Monday Night | 55°F | Chance Rain Showers | 9 to 15 mph NE | 37% |
| Tuesday | 63°F | Chance Rain Showers | 16 mph NE | 45% |
| Tuesday Night | 51°F | Chance Rain Showers | 17 mph NE | 45% |
| Wednesday | 61°F | Chance Rain Showers | 17 mph NE | 40% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 16 mph NE | 43% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 15 mph NE | 43% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 35% |
Forecast source: National Weather Service (api.weather.gov) for Denver (40.234, -76.141). Updated through the day.
Growing snapshot for Denver
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a
More local growing data for Denver: nearby ZIP 17517 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Clay
Columbia
Conestoga
East Earl
East Petersburg
Elizabethtown
Ephrata
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Farmersville
Fivepointville
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Goodville
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Lampeter
Lancaster
Climate data from the nearest NOAA station, Blue Marsh Lake, Pa (10.9 mi from Denver). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.