Dubuque, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dubuque, a city in Dubuque County, Iowa.
Tonight
53°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 53, with temperatures rising to around 56 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
7-day forecast for Dubuque
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Showers And Thunderstorms | 10 to 15 mph S | 90% |
| Wednesday | 55°F | Rain Showers Likely | 15 mph SW | 61% |
| Wednesday Night | 46°F | Chance Rain Showers | 10 to 15 mph SW | 36% |
| Thursday | 52°F | Rain Showers Likely | 10 mph W | 71% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 22% |
| Friday | 50°F | Partly Sunny | 5 to 10 mph N | 11% |
| Friday Night | 33°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 12% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 41°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 60°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Dubuque (42.499, -90.707). Updated through the day.
Growing snapshot for Dubuque
Last spring frost
Apr 19
First fall frost
Oct 21
Growing season
184 days
Hardiness zone
5a
More local growing data for Dubuque: nearby ZIP 52001 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Asbury
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Bankston
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Farley
Graf
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Luxemburg
New Vienna
Peosta
Rickardsville
Sageville
Sherrill
Worthington
Climate data from the nearest NOAA station, Dubuque L&D 11, Ia (2.5 mi from Dubuque). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.