Hartley, IA Weather & Growing Conditions
Today
73°F
Showers And Thunderstorms
A chance of rain showers and patchy smoke before 1pm, then showers and thunderstorms. Mostly cloudy, with a high near 73. North northwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Showers And Thunderstorms | 5 to 15 mph NNW | 82% |
| Tonight | 54°F | Patchy Smoke then Mostly Cloudy | 0 to 5 mph NW | 51% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 82°F | Sunny | 5 to 10 mph S | 0% |
| Thursday Night | 60°F | Mostly Clear | 10 mph S | 3% |
| Friday | 86°F | Sunny | 10 to 15 mph SSW | 5% |
| Friday Night | 64°F | Mostly Clear | 5 to 15 mph S | 13% |
| Saturday | 89°F | Sunny | 5 to 15 mph S | 8% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 to 20 mph ESE | 21% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SE | 21% |
| Sunday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph ESE | 27% |
| Monday | 86°F | Chance Showers And Thunderstorms then Mostly Sunny | 15 mph E | 27% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartley, IA
Last spring frost
May 1
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
5a
Explore more for Hartley, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Sanborn, Ia (10.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.