Miller, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Miller, a community in Hancock County, Iowa.
Overnight
42°F
Rain Showers
Rain showers. Cloudy. Low around 42, with temperatures rising to around 46 overnight. Northwest wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Miller
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Rain Showers | 13 mph NW | 76% |
| Wednesday | 49°F | Rain Showers Likely | 13 to 16 mph W | 65% |
| Wednesday Night | 39°F | Rain Showers Likely | 10 to 14 mph WNW | 56% |
| Thursday | 49°F | Chance Rain Showers then Cloudy | 12 to 16 mph NNW | 36% |
| Thursday Night | 32°F | Mostly Cloudy | 3 to 10 mph N | 12% |
| Friday | 46°F | Mostly Sunny | 5 mph NNE | 3% |
| Friday Night | 26°F | Partly Cloudy | 1 mph NNW | 1% |
| Saturday | 49°F | Mostly Sunny | 1 to 6 mph SW | 1% |
| Saturday Night | 32°F | Mostly Clear | 3 mph W | 2% |
| Sunday | 55°F | Sunny | 3 to 7 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 61°F | Sunny | 6 to 12 mph WSW | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Miller (43.186, -93.608). Updated through the day.
Growing snapshot for Miller
Last spring frost
Apr 29
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
5a
More local growing data for Miller: nearby ZIP 50438 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Britt 3E, Ia (6.4 mi from Miller). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.