Middletown, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middletown, a city in Des Moines County, Iowa.
Overnight
70°F
Patchy Fog
Patchy fog and a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Middletown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Patchy Fog | 5 mph S | 16% |
| Saturday | 86°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 25% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 mph W | 81% |
| Sunday | 73°F | Showers And Thunderstorms | 5 to 15 mph N | 80% |
| Sunday Night | 59°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph NE | 66% |
| Monday | 65°F | Showers And Thunderstorms Likely | 15 mph NE | 66% |
| Monday Night | 54°F | Chance Rain Showers | 10 mph NE | 47% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 44% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 70°F | Partly Sunny | 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 5 mph NE | 5% |
| Friday | 73°F | Mostly Sunny | 5 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for Middletown (40.828, -91.262). Updated through the day.
Growing snapshot for Middletown
Last spring frost
Apr 15
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a
More local growing data for Middletown: nearby ZIP 52638 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Burlington Muni Ap, Ia (6.3 mi from Middletown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.