Holy Cross, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Holy Cross, a city in Dubuque County, Iowa.
Tonight
64°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 64, with temperatures rising to around 66 overnight. Southeast wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Holy Cross
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 83% |
| Saturday | 77°F | Showers And Thunderstorms Likely | 10 mph S | 73% |
| Saturday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph N | 77% |
| Sunday | 66°F | Chance Rain Showers | 15 mph NE | 52% |
| Sunday Night | 55°F | Chance Rain Showers | 15 mph NE | 27% |
| Monday | 62°F | Chance Rain Showers | 15 mph NE | 45% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 45% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph E | 3% |
| Thursday | 66°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 68°F | Mostly Sunny | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Holy Cross (42.601, -90.996). Updated through the day.
Growing snapshot for Holy Cross
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
178 days
Hardiness zone
5a
More local growing data for Holy Cross: nearby ZIP 52053 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Asbury
Balltown
Bankston
Bernard
Centralia
Dubuque
Durango
Epworth
Farley
Graf
Luxemburg
New Vienna
Peosta
Rickardsville
Sageville
Sherrill
Worthington
Climate data from the nearest NOAA station, Guttenberg L&D 10, Ia (14.1 mi from Holy Cross). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.