Hartford, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartford, a city in Warren County, Iowa.
Overnight
45°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Cloudy. Low around 45, with temperatures rising to around 47 overnight. West wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Hartford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Slight Chance Rain Showers | 13 mph W | 17% |
| Wednesday | 52°F | Slight Chance Rain Showers then Cloudy | 14 to 18 mph W | 18% |
| Wednesday Night | 45°F | Mostly Cloudy then Chance Rain Showers | 14 mph W | 25% |
| Thursday | 54°F | Chance Rain Showers then Cloudy | 13 mph NW | 31% |
| Thursday Night | 41°F | Mostly Cloudy | 7 to 10 mph N | 12% |
| Friday | 50°F | Mostly Sunny | 5 to 8 mph N | 5% |
| Friday Night | 31°F | Partly Cloudy | 0 to 3 mph NNE | 3% |
| Saturday | 53°F | Mostly Sunny | 1 to 5 mph SW | 0% |
| Saturday Night | 36°F | Mostly Clear | 3 mph WSW | 1% |
| Sunday | 60°F | Sunny | 3 to 7 mph W | 1% |
| Sunday Night | 38°F | Clear | 5 mph SW | 0% |
| Monday | 66°F | Sunny | 3 to 10 mph SW | 0% |
| Monday Night | 42°F | Clear | 2 to 7 mph W | 0% |
| Tuesday | 65°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hartford (41.458, -93.404). Updated through the day.
Growing snapshot for Hartford
Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
5b
More local growing data for Hartford: nearby ZIP 50118 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Ackworth
Carlisle
Indianola
Lacona
Martensdale
Milo
New Virginia
Norwalk
Sandyville
Spring Hill
St. Marys
Climate data from the nearest NOAA station, Des Moines 17 E, Ia (8.2 mi from Hartford). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.