Millersburg, IA Weather & Growing Conditions
Today
51°F
Cloudy
Cloudy, with a high near 51. West wind around 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Cloudy | 15 mph W | 11% |
| Tonight | 43°F | Cloudy | 10 to 15 mph W | 11% |
| Thursday | 54°F | Rain Showers Likely | 10 to 15 mph NW | 67% |
| Thursday Night | 39°F | Mostly Cloudy | 5 to 10 mph N | 12% |
| Friday | 50°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Sunday | 57°F | Sunny | 5 mph W | 2% |
| Sunday Night | 35°F | Clear | 5 mph SW | 0% |
| Monday | 63°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 63°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 0 to 5 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Millersburg, IA
Last spring frost
Apr 28
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5b
Explore more for Millersburg, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Williamsburg 1E, Ia (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.