Holy Cross, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Holy Cross, a city in Dubuque County, Iowa.
Today
80°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
7-day forecast for Holy Cross
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Partly Sunny then Chance Showers And Thunderstorms | 10 mph SW | 41% |
| Tonight | 63°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 74% |
| Wednesday | 73°F | Showers And Thunderstorms Likely | 5 mph N | 55% |
| Wednesday Night | 57°F | Chance Rain Showers | 5 mph NW | 27% |
| Thursday | 77°F | Sunny | 0 to 5 mph NE | 14% |
| Thursday Night | 60°F | Mostly Clear | 0 mph | 1% |
| Friday | 80°F | Sunny | 0 to 10 mph S | 3% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph S | 8% |
| Saturday | 83°F | Mostly Sunny | 10 mph SW | 9% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 29% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 29% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 42% |
| Monday | 83°F | Chance Showers And Thunderstorms | 10 mph S | 42% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 38% |
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 Aug 4, 2026.