Harman US

Millerton, IA Weather & Growing Conditions

This Afternoon
85°F
Slight Chance Rain Showers
A slight chance of rain showers between 3pm and 4pm. Partly sunny. High near 85, with temperatures falling to around 82 in the afternoon. West southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 85°F Slight Chance Rain Showers 7 to 10 mph WSW 16%
Tonight 63°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 0 to 7 mph NNW 70%
Sunday 68°F Chance Rain Showers then Chance Showers And Thunderstorms 7 to 10 mph NNE 50%
Sunday Night 58°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 10 mph NE 65%
Monday 60°F Rain Showers Likely 12 mph NE 65%
Monday Night 52°F Chance Rain Showers 7 to 10 mph NE 45%
Tuesday 59°F Chance Rain Showers then Partly Sunny 9 mph NE 28%
Tuesday Night 46°F Partly Cloudy 6 mph NE 4%
Wednesday 63°F Sunny 5 mph NE 2%
Wednesday Night 51°F Partly Cloudy 2 mph E 5%
Thursday 65°F Partly Sunny 3 mph ESE 14%
Thursday Night 55°F Mostly Cloudy then Slight Chance Rain Showers 2 mph E 15%
Friday 68°F Slight Chance Rain Showers then Partly Sunny 5 mph E 15%
Friday Night 56°F Mostly Cloudy 3 mph ESE 9%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Millerton, IA

Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
5b

Explore more for Millerton, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Allerton, Ia (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.