Colesburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colesburg, a city in Clayton County, Iowa.
This Afternoon
67°F
Showers And Thunderstorms
Rain showers likely before 3pm, then showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 64 in the afternoon. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
7-day forecast for Colesburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms | 10 to 15 mph S | 76% |
| Tonight | 51°F | Showers And Thunderstorms | 10 mph S | 87% |
| Wednesday | 53°F | Rain Showers Likely | 10 to 15 mph SW | 57% |
| Wednesday Night | 45°F | Chance Rain Showers | 15 mph SW | 41% |
| Thursday | 50°F | Rain Showers Likely | 10 to 15 mph NW | 74% |
| Thursday Night | 40°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph N | 18% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 6% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph NW | 2% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 36°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 59°F | Sunny | 5 to 15 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 1% |
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 Nov 3, 2026.