Hartford, IA Weather & Growing Conditions
Tonight
47°F
Chance Rain Showers
A chance of rain showers before 3am. Cloudy. Low around 47, with temperatures rising to around 49 overnight. West northwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Chance Rain Showers | 8 to 13 mph WNW | 30% |
| Wednesday | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 14 to 17 mph W | 18% |
| Wednesday Night | 44°F | Mostly Cloudy | 13 mph W | 14% |
| Thursday | 53°F | Chance Rain Showers | 13 mph WNW | 52% |
| Thursday Night | 41°F | Mostly Cloudy | 9 mph NNW | 11% |
| Friday | 53°F | Partly Sunny | 5 to 8 mph N | 1% |
| Friday Night | 35°F | Mostly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 6 mph WSW | 3% |
| Saturday Night | 38°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 62°F | Sunny | 3 to 8 mph W | 5% |
| Sunday Night | 40°F | Mostly Clear | 6 mph SW | 1% |
| Monday | 66°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 65°F | Sunny | 3 to 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartford, IA
Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
5b
Explore more for Hartford, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Des Moines 17 E, Ia (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.