Colesburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colesburg, a city in Clayton County, Iowa.
Today
79°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny. High near 79, with temperatures falling to around 77 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
7-day forecast for Colesburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 44% |
| Tonight | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 69% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 5 mph N | 46% |
| Wednesday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph NW | 24% |
| Thursday | 78°F | Sunny | 0 to 5 mph E | 9% |
| Thursday Night | 59°F | Mostly Clear | 0 to 5 mph S | 1% |
| Friday | 80°F | Sunny | 5 to 10 mph S | 4% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph S | 9% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 10 mph S | 30% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 30% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 41% |
| Monday | 83°F | Chance Showers And Thunderstorms | 10 mph S | 41% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov) for Colesburg (42.639, -91.201). Updated through the day.
Growing snapshot for Colesburg
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
178 days
Hardiness zone
5a
More local growing data for Colesburg: nearby ZIP 52035 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Clayton
Edgewood
Elkader
Elkport
Farmersburg
Garber
Garnavillo
Guttenberg
Luana
Marquette
McGregor
North Buena Vista
Osterdock
St. Olaf
Strawberry Point
Volga
Climate data from the nearest NOAA station, Guttenberg L&D 10, Ia (9.1 mi from Colesburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.