Hartley, IA Weather & Growing Conditions
Tonight
62°F
Areas Of Fog
Areas of fog and a chance of showers and thunderstorms before 1am, then patchy fog and a chance of showers and thunderstorms between 1am and 2am, then areas of fog and a chance of showers and thunderstorms between 2am and 3am, then patchy fog and a chance of showers and thunderstorms between 3am and 4am, then areas of fog and a chance of showers and thunderstorms between 4am and 5am, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a low around 62. North northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Areas Of Fog | 5 to 10 mph NNE | 37% |
| Saturday | 70°F | Patchy Fog | 5 to 15 mph N | 26% |
| Saturday Night | 55°F | Slight Chance Rain Showers then Cloudy | 10 to 15 mph NNE | 19% |
| Sunday | 65°F | Slight Chance Rain Showers | 15 mph NE | 19% |
| Sunday Night | 52°F | Rain Showers Likely | 10 to 15 mph ENE | 60% |
| Monday | 60°F | Rain Showers Likely | 10 to 15 mph ENE | 60% |
| Monday Night | 47°F | Chance Rain Showers | 5 to 10 mph ENE | 38% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph E | 13% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph ESE | 0% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph SE | 5% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SSE | 24% |
| Thursday | 68°F | Slight Chance Rain Showers | 5 mph SSE | 24% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph SSE | 12% |
| Friday | 69°F | Partly Sunny | 5 to 10 mph SE | 12% |
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 Sep 19, 2026.